1021002101022 has 32 divisors (see below), whose sum is σ = 2071760751360. Its totient is φ = 335379219840.

The previous prime is 1021002101003. The next prime is 1021002101027. The reversal of 1021002101022 is 2201012001201.

It is a junction number, because it is equal to n+sod(n) for n = 1021002100989 and 1021002101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021002101027) 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, 312054 + ... + 1462662.

It is an arithmetic number, because the mean of its divisors is an integer number (64742523480).

Almost surely, 2^{1021002101022} is an apocalyptic number.

1021002101022 is an abundant number, since it is smaller than the sum of its proper divisors (1050758650338).

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

1021002101022 is a wasteful number, since it uses less digits than its factorization.

1021002101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152768.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021002101022 its reverse (2201012001201), we get a palindrome (3222014102223).

The spelling of 1021002101022 in words is "one trillion, twenty-one billion, two million, one hundred one thousand, twenty-two".