1122222012100 has 36 divisors (see below), whose sum is σ = 2783110591744. Its totient is φ = 384761832480.

The previous prime is 1122222012097. The next prime is 1122222012101. The reversal of 1122222012100 is 12102222211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1122222012101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801586452 + ... + 801587851.

Almost surely, 2^{1122222012100} is an apocalyptic number.

1122222012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122222012100 is an abundant number, since it is smaller than the sum of its proper divisors (1660888579644).

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

1122222012100 is a wasteful number, since it uses less digits than its factorization.

1122222012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603174324 (or 1603174317 counting only the distinct ones).

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

Adding to 1122222012100 its reverse (12102222211), we get a palindrome (1134324234311).

The spelling of 1122222012100 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred".