1021011220122 has 32 divisors (see below), whose sum is σ = 2150272008000. Its totient is φ = 322308390528.

The previous prime is 1021011220111. The next prime is 1021011220127. The reversal of 1021011220122 is 2210221101201.

It is not an unprimeable number, because it can be changed into a prime (1021011220127) 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, 1295997 + ... + 1929152.

It is an arithmetic number, because the mean of its divisors is an integer number (67196000250).

Almost surely, 2^{1021011220122} is an apocalyptic number.

1021011220122 is an abundant number, since it is smaller than the sum of its proper divisors (1129260787878).

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

1021011220122 is a wasteful number, since it uses less digits than its factorization.

1021011220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227950.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021011220122 its reverse (2210221101201), we get a palindrome (3231232321323).

The spelling of 1021011220122 in words is "one trillion, twenty-one billion, eleven million, two hundred twenty thousand, one hundred twenty-two".