12152221352 has 16 divisors (see below), whose sum is σ = 22802709600. Its totient is φ = 6071498800.

The previous prime is 12152221339. The next prime is 12152221399. The reversal of 12152221352 is 25312225121.

It is a happy 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, 565274 + ... + 586377.

It is an arithmetic number, because the mean of its divisors is an integer number (1425169350).

Almost surely, 2^12152221352 is an apocalyptic number.

It is an amenable number.

12152221352 is a deficient number, since it is larger than the sum of its proper divisors (10650488248).

12152221352 is a wasteful number, since it uses less digits than its factorization.

12152221352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152976 (or 1152972 counting only the distinct ones).

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

Adding to 12152221352 its reverse (25312225121), we get a palindrome (37464446473).

The spelling of 12152221352 in words is "twelve billion, one hundred fifty-two million, two hundred twenty-one thousand, three hundred fifty-two".