2012222222100 has 108 divisors (see below), whose sum is σ = 6581424866016. Its totient is φ = 513262474560.

The previous prime is 2012222222063. The next prime is 2012222222111. The reversal of 2012222222100 is 12222222102.

2012222222100 is a `hidden beast` number, since 201 + 22 + 222 + 221 + 0 + 0 = 666.

It is a super-2 number, since 2×2012222222100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48583702 + ... + 48625101.

Almost surely, 2^{2012222222100} is an apocalyptic number.

2012222222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012222222100 is an abundant number, since it is smaller than the sum of its proper divisors (4569202643916).

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

2012222222100 is a wasteful number, since it uses less digits than its factorization.

2012222222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97208846 (or 97208836 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2012222222100 its reverse (12222222102), we get a palindrome (2024444444202).

It can be divided in two parts, 2012222 and 222100, that added together give a palindrome (2234322).

The spelling of 2012222222100 in words is "two trillion, twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred".