1022022021021 has 48 divisors (see below), whose sum is σ = 1515345136704. Its totient is φ = 610407360000.

The previous prime is 1022022021017. The next prime is 1022022021023. The reversal of 1022022021021 is 1201202202201.

It is not a de Polignac number, because 1022022021021 - 2² = 1022022021017 is a prime.

It is a super-2 number, since 2×1022022021021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022022021023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2818746 + ... + 3160596.

It is an arithmetic number, because the mean of its divisors is an integer number (31569690348).

Almost surely, 2^{1022022021021} is an apocalyptic number.

It is an amenable number.

1022022021021 is a deficient number, since it is larger than the sum of its proper divisors (493323115683).

1022022021021 is a wasteful number, since it uses less digits than its factorization.

1022022021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341994 (or 341963 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1022022021021 its reverse (1201202202201), we get a palindrome (2223224223222).

The spelling of 1022022021021 in words is "one trillion, twenty-two billion, twenty-two million, twenty-one thousand, twenty-one".