220102120008 has 24 divisors (see below), whose sum is σ = 596109908550. Its totient is φ = 73367373312.

The previous prime is 220102120003. The next prime is 220102120099. The reversal of 220102120008 is 800021201022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 176687396964 + 43414723044 = 420342^2 + 208362^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220102120001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1528486873 + ... + 1528487016.

Almost surely, 2^220102120008 is an apocalyptic number.

It is an amenable number.

220102120008 is an abundant number, since it is smaller than the sum of its proper divisors (376007788542).

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

220102120008 is a wasteful number, since it uses less digits than its factorization.

220102120008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056973901 (or 3056973894 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 220102120008 in words is "two hundred twenty billion, one hundred two million, one hundred twenty thousand, eight".