32712121228 has 6 divisors (see below), whose sum is σ = 57246212156. Its totient is φ = 16356060612.

The previous prime is 32712121223. The next prime is 32712121237. The reversal of 32712121228 is 82212121723.

It is a self number, because there is not a number n which added to its sum of digits gives 32712121228.

It is not an unprimeable number, because it can be changed into a prime (32712121223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4089015150 + ... + 4089015157.

Almost surely, 2^32712121228 is an apocalyptic number.

It is an amenable number.

32712121228 is a deficient number, since it is larger than the sum of its proper divisors (24534090928).

32712121228 is a wasteful number, since it uses less digits than its factorization.

32712121228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178030311 (or 8178030309 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The spelling of 32712121228 in words is "thirty-two billion, seven hundred twelve million, one hundred twenty-one thousand, two hundred twenty-eight".