1112222100021 has 16 divisors (see below), whose sum is σ = 1578086352000. Its totient is φ = 694357982208.

The previous prime is 1112222100001. The next prime is 1112222100103. The reversal of 1112222100021 is 1200012222111.

It is not a de Polignac number, because 1112222100021 - 2⁶ = 1112222099957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222100001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54784516 + ... + 54804813.

It is an arithmetic number, because the mean of its divisors is an integer number (98630397000).

Almost surely, 2^{1112222100021} is an apocalyptic number.

It is an amenable number.

1112222100021 is a deficient number, since it is larger than the sum of its proper divisors (465864251979).

1112222100021 is a wasteful number, since it uses less digits than its factorization.

1112222100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109589548.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1112222100021 its reverse (1200012222111), we get a palindrome (2312234322132).

The spelling of 1112222100021 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred thousand, twenty-one".