20212231120 has 40 divisors (see below), whose sum is σ = 47003134464. Its totient is φ = 8083224192.

The previous prime is 20212231093. The next prime is 20212231153. The reversal of 20212231120 is 2113221202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20212231094 and 20212231103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409197 + ... + 455923.

Almost surely, 2^20212231120 is an apocalyptic number.

20212231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212231120 is an abundant number, since it is smaller than the sum of its proper divisors (26790903344).

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

20212231120 is a wasteful number, since it uses less digits than its factorization.

20212231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52147 (or 52141 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20212231120 its reverse (2113221202), we get a palindrome (22325452322).

The spelling of 20212231120 in words is "twenty billion, two hundred twelve million, two hundred thirty-one thousand, one hundred twenty".