1220137374402 has 64 divisors (see below), whose sum is σ = 2832603217920. Its totient is φ = 388850576400.

The previous prime is 1220137374397. The next prime is 1220137374419. The reversal of 1220137374402 is 2044737310221.

1220137374402 is a `hidden beast` number, since 1 + 2 + 201 + 3 + 7 + 3 + 7 + 440 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4251874 + ... + 4529757.

It is an arithmetic number, because the mean of its divisors is an integer number (44259425280).

Almost surely, 2^{1220137374402} is an apocalyptic number.

1220137374402 is an abundant number, since it is smaller than the sum of its proper divisors (1612465843518).

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

1220137374402 is a wasteful number, since it uses less digits than its factorization.

1220137374402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781756 (or 8781750 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 1220137374402 in words is "one trillion, two hundred twenty billion, one hundred thirty-seven million, three hundred seventy-four thousand, four hundred two".