20212220112 has 60 divisors (see below), whose sum is σ = 60739790976. Its totient is φ = 5774919360.

The previous prime is 20212220111. The next prime is 20212220113. The reversal of 20212220112 is 21102221202.

It is an interprime number because it is at equal distance from previous prime (20212220111) and next prime (20212220113).

It is a super-3 number, since 3×20212220112³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212220091 and 20212220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212220111) 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, 4294464 + ... + 4299167.

Almost surely, 2^20212220112 is an apocalyptic number.

It is an amenable number.

20212220112 is an abundant number, since it is smaller than the sum of its proper divisors (40527570864).

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

20212220112 is a wasteful number, since it uses less digits than its factorization.

20212220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593656 (or 8593643 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212220112 its reverse (21102221202), we get a palindrome (41314441314).

The spelling of 20212220112 in words is "twenty billion, two hundred twelve million, two hundred twenty thousand, one hundred twelve".