1220355215004 has 24 divisors (see below), whose sum is σ = 2855945052688. Its totient is φ = 405577992960.

The previous prime is 1220355214997. The next prime is 1220355215033. The reversal of 1220355215004 is 4005125530221.

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, 150880627 + ... + 150888714.

Almost surely, 2^{1220355215004} is an apocalyptic number.

It is an amenable number.

1220355215004 is an abundant number, since it is smaller than the sum of its proper divisors (1635589837684).

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

1220355215004 is a wasteful number, since it uses less digits than its factorization.

1220355215004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301769685 (or 301769683 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 1220355215004 in words is "one trillion, two hundred twenty billion, three hundred fifty-five million, two hundred fifteen thousand, four".