10221001129 has 2 divisors, whose sum is σ = 10221001130. Its totient is φ = 10221001128.

The previous prime is 10221001097. The next prime is 10221001139. The reversal of 10221001129 is 92110012201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10030423104 + 190578025 = 100152^2 + 13805^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221001129 - 2⁵ = 10221001097 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221001139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500564 + 5110500565.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500565).

Almost surely, 2^10221001129 is an apocalyptic number.

It is an amenable number.

10221001129 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221001129 is an equidigital number, since it uses as much as digits as its factorization.

10221001129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 10221001129 in words is "ten billion, two hundred twenty-one million, one thousand, one hundred twenty-nine".