20112220210100 has 72 divisors (see below), whose sum is σ = 45053463227136. Its totient is φ = 7785014400000.

The previous prime is 20112220210091. The next prime is 20112220210151. The reversal of 20112220210100 is 101202221102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72311300 + ... + 72588900.

Almost surely, 2^{20112220210100} is an apocalyptic number.

20112220210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112220210100 is an abundant number, since it is smaller than the sum of its proper divisors (24941243017036).

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

20112220210100 is a wasteful number, since it uses less digits than its factorization.

20112220210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301017 (or 301010 counting only the distinct ones).

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

Adding to 20112220210100 its reverse (101202221102), we get a palindrome (20213422431202).

The spelling of 20112220210100 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, two hundred ten thousand, one hundred".