20102210118 has 24 divisors (see below), whose sum is σ = 43761217656. Its totient is φ = 6668978400.

The previous prime is 20102210101. The next prime is 20102210119. The reversal of 20102210118 is 81101220102.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102210118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102210119) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2642623 + ... + 2650218.

It is an arithmetic number, because the mean of its divisors is an integer number (1823384069).

Almost surely, 2^20102210118 is an apocalyptic number.

20102210118 is an abundant number, since it is smaller than the sum of its proper divisors (23659007538).

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

20102210118 is a wasteful number, since it uses less digits than its factorization.

20102210118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293060 (or 5293057 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The spelling of 20102210118 in words is "twenty billion, one hundred two million, two hundred ten thousand, one hundred eighteen".