10102021010 has 96 divisors (see below), whose sum is σ = 19905934032. Its totient is φ = 3688755200.

The previous prime is 10102021009. The next prime is 10102021043. The reversal of 10102021010 is 1012020101.

It can be written as a sum of positive squares in 24 ways, for example, as 2245148689 + 7856872321 = 47383^2 + 88639^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15469844 + ... + 15470496.

Almost surely, 2^10102021010 is an apocalyptic number.

10102021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10102021010 is a deficient number, since it is larger than the sum of its proper divisors (9803913022).

10102021010 is a wasteful number, since it uses less digits than its factorization.

10102021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10102021010 its reverse (1012020101), we get a palindrome (11114041111).

Subtracting from 10102021010 its reverse (1012020101), we obtain a palindrome (9090000909).

The spelling of 10102021010 in words is "ten billion, one hundred two million, twenty-one thousand, ten".