252231501212 has 12 divisors (see below), whose sum is σ = 447451773216. Its totient is φ = 124388137440.

The previous prime is 252231501199. The next prime is 252231501229. The reversal of 252231501212 is 212105132252.

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 in 3 ways as a sum of consecutive naturals, for example, 431902964 + ... + 431903547.

It is an arithmetic number, because the mean of its divisors is an integer number (37287647768).

Almost surely, 2^252231501212 is an apocalyptic number.

It is an amenable number.

252231501212 is a deficient number, since it is larger than the sum of its proper divisors (195220272004).

252231501212 is a wasteful number, since it uses less digits than its factorization.

252231501212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863806588 (or 863806586 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 252231501212 its reverse (212105132252), we get a palindrome (464336633464).

The spelling of 252231501212 in words is "two hundred fifty-two billion, two hundred thirty-one million, five hundred one thousand, two hundred twelve".