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2211110222020 = 225715793644443
BaseRepresentation
bin100000001011010000011…
…100000111100011000100
321211101021001222021212221
4200023100130013203010
5242211323204101040
64411434153422124
7315514241532640
oct40132034074304
97741231867787
102211110222020
117827aa093257
122b864040a944
131306785902cb
1479038333c20
153c7b1a1474a
hex202d07078c4

2211110222020 has 24 divisors (see below), whose sum is σ = 5306664533184. Its totient is φ = 758094933216.

The previous prime is 2211110221987. The next prime is 2211110222039. The reversal of 2211110222020 is 202220111122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2211110221985 and 2211110222003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896822082 + ... + 7896822361.

It is an arithmetic number, because the mean of its divisors is an integer number (221111022216).

Almost surely, 22211110222020 is an apocalyptic number.

2211110222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211110222020 is an abundant number, since it is smaller than the sum of its proper divisors (3095554311164).

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

2211110222020 is a wasteful number, since it uses less digits than its factorization.

2211110222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15793644459 (or 15793644457 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2211110222020 its reverse (202220111122), we get a palindrome (2413330333142).

It can be divided in two parts, 22111102 and 22020, that added together give a palindrome (22133122).

The spelling of 2211110222020 in words is "two trillion, two hundred eleven billion, one hundred ten million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15793644443 31587288886 63174577772 78968222215 110555511101 157936444430 221111022202 315872888860 442222044404 552777555505 1105555111010 2211110222020