1220879962572 has 12 divisors (see below), whose sum is σ = 2848719912696. Its totient is φ = 406959987520.

The previous prime is 1220879962571. The next prime is 1220879962591. The reversal of 1220879962572 is 2752699780221.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1220879962571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50869998429 + ... + 50869998452.

It is an arithmetic number, because the mean of its divisors is an integer number (237393326058).

Almost surely, 2^{1220879962572} is an apocalyptic number.

1220879962572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220879962572 is an abundant number, since it is smaller than the sum of its proper divisors (1627839950124).

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

1220879962572 is a wasteful number, since it uses less digits than its factorization.

1220879962572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101739996888 (or 101739996886 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 1220879962572 in words is "one trillion, two hundred twenty billion, eight hundred seventy-nine million, nine hundred sixty-two thousand, five hundred seventy-two".