1022122112021 has 16 divisors (see below), whose sum is σ = 1076839982208. Its totient is φ = 968265988800.

The previous prime is 1022122111973. The next prime is 1022122112041. The reversal of 1022122112021 is 1202112212201.

It is a cyclic number.

It is not a de Polignac number, because 1022122112021 - 2⁶ = 1022122111957 is a prime.

It is a super-2 number, since 2×1022122112021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022122112041) 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, 8754851 + ... + 8870831.

It is an arithmetic number, because the mean of its divisors is an integer number (67302498888).

Almost surely, 2^{1022122112021} is an apocalyptic number.

It is an amenable number.

1022122112021 is a deficient number, since it is larger than the sum of its proper divisors (54717870187).

1022122112021 is a wasteful number, since it uses less digits than its factorization.

1022122112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119692.

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

Adding to 1022122112021 its reverse (1202112212201), we get a palindrome (2224234324222).

The spelling of 1022122112021 in words is "one trillion, twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, twenty-one".