1021122011021 has 16 divisors (see below), whose sum is σ = 1178885057280. Its totient is φ = 866335996800.

The previous prime is 1021122010939. The next prime is 1021122011027. The reversal of 1021122011021 is 1201102211201.

It is a cyclic number.

It is not a de Polignac number, because 1021122011021 - 2²² = 1021117816717 is a prime.

It is a super-2 number, since 2×1021122011021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021122010987 and 1021122011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021122011027) 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, 2313305 + ... + 2719121.

It is an arithmetic number, because the mean of its divisors is an integer number (73680316080).

Almost surely, 2^{1021122011021} is an apocalyptic number.

It is an amenable number.

1021122011021 is a deficient number, since it is larger than the sum of its proper divisors (157763046259).

1021122011021 is a wasteful number, since it uses less digits than its factorization.

1021122011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409484.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021122011021 its reverse (1201102211201), we get a palindrome (2222224222222).

The spelling of 1021122011021 in words is "one trillion, twenty-one billion, one hundred twenty-two million, eleven thousand, twenty-one".