1122022222021 has 32 divisors (see below), whose sum is σ = 1252476086400. Its totient is φ = 1000635068160.

The previous prime is 1122022222007. The next prime is 1122022222031. The reversal of 1122022222021 is 1202222202211.

It is a cyclic number.

It is not a de Polignac number, because 1122022222021 - 2⁷ = 1122022221893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122022222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122022222001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13154491 + ... + 13239511.

It is an arithmetic number, because the mean of its divisors is an integer number (39139877700).

Almost surely, 2^{1122022222021} is an apocalyptic number.

It is an amenable number.

1122022222021 is a deficient number, since it is larger than the sum of its proper divisors (130453864379).

1122022222021 is a wasteful number, since it uses less digits than its factorization.

1122022222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85669.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1122022222021 its reverse (1202222202211), we get a palindrome (2324244424232).

The spelling of 1122022222021 in words is "one trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, twenty-one".