1220770384688 has 40 divisors (see below), whose sum is σ = 2370953936736. Its totient is φ = 608912345600.

The previous prime is 1220770384573. The next prime is 1220770384709. The reversal of 1220770384688 is 8864830770221.

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, 19614098 + ... + 19676238.

Almost surely, 2^{1220770384688} is an apocalyptic number.

It is an amenable number.

1220770384688 is a deficient number, since it is larger than the sum of its proper divisors (1150183552048).

1220770384688 is a wasteful number, since it uses less digits than its factorization.

1220770384688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65093 (or 65087 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 1220770384688 in words is "one trillion, two hundred twenty billion, seven hundred seventy million, three hundred eighty-four thousand, six hundred eighty-eight".