23221220770 has 32 divisors (see below), whose sum is σ = 46658462400. Its totient is φ = 8247704640.

The previous prime is 23221220761. The next prime is 23221220791. The reversal of 23221220770 is 7702212232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2449945 + ... + 2459404.

It is an arithmetic number, because the mean of its divisors is an integer number (1458076950).

Almost surely, 2^23221220770 is an apocalyptic number.

23221220770 is an abundant number, since it is smaller than the sum of its proper divisors (23437241630).

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

23221220770 is a wasteful number, since it uses less digits than its factorization.

23221220770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909410.

The product of its (nonzero) digits is 4704, while the sum is 28.

The spelling of 23221220770 in words is "twenty-three billion, two hundred twenty-one million, two hundred twenty thousand, seven hundred seventy".