1112222202021 has 48 divisors (see below), whose sum is σ = 1991468239488. Its totient is φ = 583580390400.

The previous prime is 1112222202011. The next prime is 1112222202053. The reversal of 1112222202021 is 1202022222111.

It is a happy number.

It is not a de Polignac number, because 1112222202021 - 2¹⁸ = 1112221939877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112222201985 and 1112222202003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222202011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12620595 + ... + 12708416.

It is an arithmetic number, because the mean of its divisors is an integer number (41488921656).

Almost surely, 2^{1112222202021} is an apocalyptic number.

It is an amenable number.

1112222202021 is a deficient number, since it is larger than the sum of its proper divisors (879246037467).

1112222202021 is a wasteful number, since it uses less digits than its factorization.

1112222202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25329082 (or 25329079 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1112222202021 its reverse (1202022222111), we get a palindrome (2314244424132).

The spelling of 1112222202021 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred two thousand, twenty-one".