20312210213100 has 216 divisors, whose sum is σ = 70159530513072. Its totient is φ = 4883651136000.

The previous prime is 20312210213093. The next prime is 20312210213131. The reversal of 20312210213100 is 131201221302.

20312210213100 is a `hidden beast` number, since 2 + 0 + 312 + 21 + 0 + 21 + 310 + 0 = 666.

It is a super-2 number, since 2×20312210213100² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19683951 + ... + 20690150.

Almost surely, 2^{20312210213100} is an apocalyptic number.

20312210213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312210213100 is an abundant number, since it is smaller than the sum of its proper divisors (49847320299972).

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

20312210213100 is a wasteful number, since it uses less digits than its factorization.

20312210213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40374177 (or 40374167 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20312210213100 its reverse (131201221302), we get a palindrome (20443411434402).

The spelling of 20312210213100 in words is "twenty trillion, three hundred twelve billion, two hundred ten million, two hundred thirteen thousand, one hundred".