129620237201 has 16 divisors (see below), whose sum is σ = 166468802304. Its totient is φ = 98097683904.

The previous prime is 129620237191. The next prime is 129620237221. The reversal of 129620237201 is 102732026921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129620237201 - 2¹⁴ = 129620220817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129620237221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30963086 + ... + 30967271.

It is an arithmetic number, because the mean of its divisors is an integer number (10404300144).

Almost surely, 2^129620237201 is an apocalyptic number.

It is an amenable number.

129620237201 is a deficient number, since it is larger than the sum of its proper divisors (36848565103).

129620237201 is a wasteful number, since it uses less digits than its factorization.

129620237201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61930400.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 129620237201 in words is "one hundred twenty-nine billion, six hundred twenty million, two hundred thirty-seven thousand, two hundred one".