212220120012 has 24 divisors (see below), whose sum is σ = 495496329216. Its totient is φ = 70694890128.

The previous prime is 212220120001. The next prime is 212220120023. The reversal of 212220120012 is 210021022212.

It is an interprime number because it is at equal distance from previous prime (212220120001) and next prime (212220120023).

It is a junction number, because it is equal to n+sod(n) for n = 212220119973 and 212220120000.

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, 5624148 + ... + 5661755.

It is an arithmetic number, because the mean of its divisors is an integer number (20645680384).

Almost surely, 2^212220120012 is an apocalyptic number.

It is an amenable number.

212220120012 is an abundant number, since it is smaller than the sum of its proper divisors (283276209204).

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

212220120012 is a wasteful number, since it uses less digits than its factorization.

212220120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287477 (or 11287475 counting only the distinct ones).

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

Adding to 212220120012 its reverse (210021022212), we get a palindrome (422241142224).

The spelling of 212220120012 in words is "two hundred twelve billion, two hundred twenty million, one hundred twenty thousand, twelve".