212212220012 has 48 divisors (see below), whose sum is σ = 402031123200. Its totient is φ = 97432584000.

The previous prime is 212212219981. The next prime is 212212220023. The reversal of 212212220012 is 210022212212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10940939 + ... + 10960317.

It is an arithmetic number, because the mean of its divisors is an integer number (8375648400).

Almost surely, 2^212212220012 is an apocalyptic number.

It is an amenable number.

212212220012 is a deficient number, since it is larger than the sum of its proper divisors (189818903188).

212212220012 is a wasteful number, since it uses less digits than its factorization.

212212220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20484 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212212220012 its reverse (210022212212), we get a palindrome (422234432224).

The spelling of 212212220012 in words is "two hundred twelve billion, two hundred twelve million, two hundred twenty thousand, twelve".