1021112022204 has 18 divisors (see below), whose sum is σ = 2581144278440. Its totient is φ = 340370674056.

The previous prime is 1021112022143. The next prime is 1021112022277. The reversal of 1021112022204 is 4022202111201.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14182111384 + ... + 14182111455.

Almost surely, 2^{1021112022204} is an apocalyptic number.

It is an amenable number.

1021112022204 is an abundant number, since it is smaller than the sum of its proper divisors (1560032256236).

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

1021112022204 is a wasteful number, since it uses less digits than its factorization.

1021112022204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28364222849 (or 28364222844 counting only the distinct ones).

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

Adding to 1021112022204 its reverse (4022202111201), we get a palindrome (5043314133405).

The spelling of 1021112022204 in words is "one trillion, twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred four".