10122021130 has 16 divisors (see below), whose sum is σ = 19621148904. Its totient is φ = 3737361600.

The previous prime is 10122021109. The next prime is 10122021139. The reversal of 10122021130 is 3112022101.

It can be written as a sum of positive squares in 4 ways, for example, as 6940722721 + 3181298409 = 83311^2 + 56403^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 10122021130.

It is not an unprimeable number, because it can be changed into a prime (10122021139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38930721 + ... + 38930980.

Almost surely, 2^10122021130 is an apocalyptic number.

10122021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10122021130 is a deficient number, since it is larger than the sum of its proper divisors (9499127774).

10122021130 is a wasteful number, since it uses less digits than its factorization.

10122021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77861721.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10122021130 its reverse (3112022101), we get a palindrome (13234043231).

The spelling of 10122021130 in words is "ten billion, one hundred twenty-two million, twenty-one thousand, one hundred thirty".