121752032252 has 6 divisors (see below), whose sum is σ = 213066056448. Its totient is φ = 60876016124.

The previous prime is 121752032177. The next prime is 121752032287. The reversal of 121752032252 is 252230257121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15219004028 + ... + 15219004035.

It is an arithmetic number, because the mean of its divisors is an integer number (35511009408).

Almost surely, 2^121752032252 is an apocalyptic number.

It is an amenable number.

121752032252 is a deficient number, since it is larger than the sum of its proper divisors (91314024196).

121752032252 is a wasteful number, since it uses less digits than its factorization.

121752032252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30438008067 (or 30438008065 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 121752032252 its reverse (252230257121), we get a palindrome (373982289373).

The spelling of 121752032252 in words is "one hundred twenty-one billion, seven hundred fifty-two million, thirty-two thousand, two hundred fifty-two".