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2221001010220 = 225111050050511
BaseRepresentation
bin100000010100011101111…
…110011110110000101100
321212022210101020101120211
4200110131332132300230
5242342102224311340
64420151435352204
7316314322045066
oct40243576366054
97768711211524
102221001010220
11786a15194883
122ba5408b2664
131315937600c5
14796d5b88736
153cb8eeed5ea
hex2051df9ec2c

2221001010220 has 12 divisors (see below), whose sum is σ = 4664102121504. Its totient is φ = 888400404080.

The previous prime is 2221001010211. The next prime is 2221001010253. The reversal of 2221001010220 is 220101001222.

It is a happy number.

2221001010220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2221001010220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55525025236 + ... + 55525025275.

It is an arithmetic number, because the mean of its divisors is an integer number (388675176792).

Almost surely, 22221001010220 is an apocalyptic number.

2221001010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221001010220 is an abundant number, since it is smaller than the sum of its proper divisors (2443101111284).

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

2221001010220 is a wasteful number, since it uses less digits than its factorization.

2221001010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111050050520 (or 111050050518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2221001010220 its reverse (220101001222), we get a palindrome (2441102011442).

The spelling of 2221001010220 in words is "two trillion, two hundred twenty-one billion, one million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 111050050511 222100101022 444200202044 555250252555 1110500505110 2221001010220