12120867552 has 48 divisors (see below), whose sum is σ = 32114662272. Its totient is φ = 4002526080.

The previous prime is 12120867527. The next prime is 12120867569. The reversal of 12120867552 is 25576802121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 12120867552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579724 + ... + 600267.

It is an arithmetic number, because the mean of its divisors is an integer number (669055464).

Almost surely, 2^12120867552 is an apocalyptic number.

12120867552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120867552 is an abundant number, since it is smaller than the sum of its proper divisors (19993794720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120867552 is a wasteful number, since it uses less digits than its factorization.

12120867552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180111 (or 1180103 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 12120867552 in words is "twelve billion, one hundred twenty million, eight hundred sixty-seven thousand, five hundred fifty-two".