29232125221 has 8 divisors (see below), whose sum is σ = 31483672920. Its totient is φ = 26980995072.

The previous prime is 29232125213. The next prime is 29232125231. The reversal of 29232125221 is 12252123292.

It can be written as a sum of positive squares in 4 ways, for example, as 7631944321 + 21600180900 = 87361^2 + 146970^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29232125221 - 2³ = 29232125213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29232125231) 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, 49425 + ... + 246793.

It is an arithmetic number, because the mean of its divisors is an integer number (3935459115).

Almost surely, 2^29232125221 is an apocalyptic number.

It is an amenable number.

29232125221 is a deficient number, since it is larger than the sum of its proper divisors (2251547699).

29232125221 is a wasteful number, since it uses less digits than its factorization.

29232125221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208775.

The product of its digits is 8640, while the sum is 31.

The spelling of 29232125221 in words is "twenty-nine billion, two hundred thirty-two million, one hundred twenty-five thousand, two hundred twenty-one".