1220656610010 has 32 divisors (see below), whose sum is σ = 2958581572992. Its totient is φ = 322285572800.

The previous prime is 1220656610009. The next prime is 1220656610023. The reversal of 1220656610010 is 100166560221.

It is a super-2 number, since 2×1220656610010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 1220656610010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201425454 + ... + 201431513.

It is an arithmetic number, because the mean of its divisors is an integer number (92455674156).

Almost surely, 2^{1220656610010} is an apocalyptic number.

1220656610010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220656610010 is an abundant number, since it is smaller than the sum of its proper divisors (1737924962982).

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

1220656610010 is a wasteful number, since it uses less digits than its factorization.

1220656610010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402857078.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 1220656610010 in words is "one trillion, two hundred twenty billion, six hundred fifty-six million, six hundred ten thousand, ten".