20112202210100 has 144 divisors (see below), whose sum is σ = 58598237556096. Its totient is φ = 5786527680000.

The previous prime is 20112202210091. The next prime is 20112202210103. The reversal of 20112202210100 is 101220221102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112202210103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100360451 + ... + 100560650.

Almost surely, 2^{20112202210100} is an apocalyptic number.

20112202210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112202210100 is an abundant number, since it is smaller than the sum of its proper divisors (38486035345996).

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

20112202210100 is a wasteful number, since it uses less digits than its factorization.

20112202210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200921146 (or 200921139 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112202210100 its reverse (101220221102), we get a palindrome (20213422431202).

It can be divided in two parts, 20112202 and 210100, that added together give a palindrome (20322302).

The spelling of 20112202210100 in words is "twenty trillion, one hundred twelve billion, two hundred two million, two hundred ten thousand, one hundred".