10100322121 has 4 divisors (see below), whose sum is σ = 10238682772. Its totient is φ = 9961961472.

The previous prime is 10100322103. The next prime is 10100322151. The reversal of 10100322121 is 12122300101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8544414096 + 1555908025 = 92436^2 + 39445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10100322121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10100322151) 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, 69180216 + ... + 69180361.

It is an arithmetic number, because the mean of its divisors is an integer number (2559670693).

Almost surely, 2^10100322121 is an apocalyptic number.

It is an amenable number.

10100322121 is a deficient number, since it is larger than the sum of its proper divisors (138360651).

10100322121 is an equidigital number, since it uses as much as digits as its factorization.

10100322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138360650.

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

Adding to 10100322121 its reverse (12122300101), we get a palindrome (22222622222).

The spelling of 10100322121 in words is "ten billion, one hundred million, three hundred twenty-two thousand, one hundred twenty-one".