1021022220102 has 32 divisors (see below), whose sum is σ = 2075931417600. Its totient is φ = 334695119520.

The previous prime is 1021022220091. The next prime is 1021022220173. The reversal of 1021022220102 is 2010222201201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1592683 + ... + 2139785.

It is an arithmetic number, because the mean of its divisors is an integer number (64872856800).

Almost surely, 2^{1021022220102} is an apocalyptic number.

1021022220102 is an abundant number, since it is smaller than the sum of its proper divisors (1054909197498).

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

1021022220102 is a wasteful number, since it uses less digits than its factorization.

1021022220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552268.

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

Adding to 1021022220102 its reverse (2010222201201), we get a palindrome (3031244421303).

The spelling of 1021022220102 in words is "one trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred two".