20218142200 has 48 divisors (see below), whose sum is σ = 47446550280. Its totient is φ = 8011666560.

The previous prime is 20218142173. The next prime is 20218142207. The reversal of 20218142200 is 224181202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20218142207) 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, 450987 + ... + 493786.

Almost surely, 2^20218142200 is an apocalyptic number.

20218142200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20218142200 is an abundant number, since it is smaller than the sum of its proper divisors (27228408080).

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

20218142200 is a wasteful number, since it uses less digits than its factorization.

20218142200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944896 (or 944887 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 20218142200 in words is "twenty billion, two hundred eighteen million, one hundred forty-two thousand, two hundred".