212013221313212 has 12 divisors (see below), whose sum is σ = 404752513416216. Its totient is φ = 96369646051440.

The previous prime is 212013221313169. The next prime is 212013221313253. The reversal of 212013221313212 is 212313122310212.

It is a super-2 number, since 2×212013221313212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409241151243 + ... + 2409241151330.

It is an arithmetic number, because the mean of its divisors is an integer number (33729376118018).

Almost surely, 2^{212013221313212} is an apocalyptic number.

212013221313212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212013221313212 is a deficient number, since it is larger than the sum of its proper divisors (192739292103004).

212013221313212 is a wasteful number, since it uses less digits than its factorization.

212013221313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818482302588 (or 4818482302586 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 212013221313212 its reverse (212313122310212), we get a palindrome (424326343623424).

The spelling of 212013221313212 in words is "two hundred twelve trillion, thirteen billion, two hundred twenty-one million, three hundred thirteen thousand, two hundred twelve".