1112222120021 has 12 divisors (see below), whose sum is σ = 1148713734432. Its totient is φ = 1076811372000.

The previous prime is 1112222120011. The next prime is 1112222120029. The reversal of 1112222120021 is 1200212222111.

It is not a de Polignac number, because 1112222120021 - 2¹⁴ = 1112222103637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222120029) 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, 2305145 + ... + 2745566.

It is an arithmetic number, because the mean of its divisors is an integer number (95726144536).

Almost surely, 2^{1112222120021} is an apocalyptic number.

It is an amenable number.

1112222120021 is a deficient number, since it is larger than the sum of its proper divisors (36491614411).

1112222120021 is an equidigital number, since it uses as much as digits as its factorization.

1112222120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050924 (or 5050883 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1112222120021 its reverse (1200212222111), we get a palindrome (2312434342132).

The spelling of 1112222120021 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred twenty thousand, twenty-one".