10220312129 has 4 divisors (see below), whose sum is σ = 10272192084. Its totient is φ = 10168432176.

The previous prime is 10220312117. The next prime is 10220312149. The reversal of 10220312129 is 92121302201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92121302201 = 101 ⋅912092101.

It can be written as a sum of positive squares in 2 ways, for example, as 8982679729 + 1237632400 = 94777^2 + 35180^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220312129 - 2⁸ = 10220311873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220312149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25939682 + ... + 25940075.

It is an arithmetic number, because the mean of its divisors is an integer number (2568048021).

Almost surely, 2^10220312129 is an apocalyptic number.

It is an amenable number.

10220312129 is a deficient number, since it is larger than the sum of its proper divisors (51879955).

10220312129 is an equidigital number, since it uses as much as digits as its factorization.

10220312129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51879954.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 10220312129 in words is "ten billion, two hundred twenty million, three hundred twelve thousand, one hundred twenty-nine".