12217270652 has 12 divisors (see below), whose sum is σ = 21383160456. Its totient is φ = 6107796240.

The previous prime is 12217270649. The next prime is 12217270661. The reversal of 12217270652 is 25607271221.

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, 176423 + ... + 235710.

It is an arithmetic number, because the mean of its divisors is an integer number (1781930038).

Almost surely, 2^12217270652 is an apocalyptic number.

It is an amenable number.

12217270652 is a deficient number, since it is larger than the sum of its proper divisors (9165889804).

12217270652 is a wasteful number, since it uses less digits than its factorization.

12217270652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419548 (or 419546 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 12217270652 in words is "twelve billion, two hundred seventeen million, two hundred seventy thousand, six hundred fifty-two".