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2220012100220 = 2251573891817507
BaseRepresentation
bin100000010011100011000…
…010000101101001111100
321212020020110102120002112
4200103203002011221330
5242333041044201340
64415505351513152
7316250653333415
oct40234302055174
97766213376075
102220012100220
11786557a56092
122ba3056887b8
13131466906965
14796406c680c
153cb332ad065
hex204e3085a7c

2220012100220 has 48 divisors (see below), whose sum is σ = 4703783404320. Its totient is φ = 880080025344.

The previous prime is 2220012100213. The next prime is 2220012100237. The reversal of 2220012100220 is 220012100222.

It is a junction number, because it is equal to n+sod(n) for n = 2220012100195 and 2220012100204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312707 + ... + 2130213.

It is an arithmetic number, because the mean of its divisors is an integer number (97995487590).

Almost surely, 22220012100220 is an apocalyptic number.

2220012100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220012100220 is an abundant number, since it is smaller than the sum of its proper divisors (2483771304100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220012100220 is a wasteful number, since it uses less digits than its factorization.

2220012100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818062 (or 1818060 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220012100220 its reverse (220012100222), we get a palindrome (2440024200442).

It can be divided in two parts, 2220012 and 100220, that added together give a palindrome (2320232).

The spelling of 2220012100220 in words is "two trillion, two hundred twenty billion, twelve million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 157 314 389 628 778 785 1556 1570 1945 3140 3890 7780 61073 122146 244292 305365 610730 1221460 1817507 3635014 7270028 9087535 18175070 36350140 285348599 570697198 707010223 1141394396 1414020446 1426742995 2828040892 2853485990 3535051115 5706971980 7070102230 14140204460 111000605011 222001210022 444002420044 555003025055 1110006050110 2220012100220