101200021010 has 24 divisors (see below), whose sum is σ = 200225498508. Its totient is φ = 36800007200.

The previous prime is 101200021009. The next prime is 101200021033. The reversal of 101200021010 is 10120002101.

It can be written as a sum of positive squares in 2 ways, for example, as 82495902841 + 18704118169 = 287221^2 + 136763^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41816981 + ... + 41819400.

Almost surely, 2^101200021010 is an apocalyptic number.

101200021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101200021010 is a deficient number, since it is larger than the sum of its proper divisors (99025477498).

101200021010 is a wasteful number, since it uses less digits than its factorization.

101200021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83636410 (or 83636399 counting only the distinct ones).

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

Adding to 101200021010 its reverse (10120002101), we get a palindrome (111320023111).

The spelling of 101200021010 in words is "one hundred one billion, two hundred million, twenty-one thousand, ten".