1021102110102 has 32 divisors (see below), whose sum is σ = 2167726320864. Its totient is φ = 319546880000.

The previous prime is 1021102110079. The next prime is 1021102110107. The reversal of 1021102110102 is 2010112011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021102110107) 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, 12441399 + ... + 12523202.

It is an arithmetic number, because the mean of its divisors is an integer number (67741447527).

Almost surely, 2^{1021102110102} is an apocalyptic number.

1021102110102 is an abundant number, since it is smaller than the sum of its proper divisors (1146624210762).

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

1021102110102 is a wasteful number, since it uses less digits than its factorization.

1021102110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24965024.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021102110102 its reverse (2010112011201), we get a palindrome (3031214121303).

The spelling of 1021102110102 in words is "one trillion, twenty-one billion, one hundred two million, one hundred ten thousand, one hundred two".