201020220108 has 36 divisors (see below), whose sum is σ = 508148710888. Its totient is φ = 67004858880.

The previous prime is 201020220101. The next prime is 201020220143. The reversal of 201020220108 is 801022020102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 (201020220101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1918935 + ... + 2020977.

Almost surely, 2^201020220108 is an apocalyptic number.

It is an amenable number.

201020220108 is an abundant number, since it is smaller than the sum of its proper divisors (307128490780).

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

201020220108 is a wasteful number, since it uses less digits than its factorization.

201020220108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156774 (or 156769 counting only the distinct ones).

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

The spelling of 201020220108 in words is "two hundred one billion, twenty million, two hundred twenty thousand, one hundred eight".