2213212121312 has 96 divisors (see below), whose sum is σ = 4461025127328. Its totient is φ = 1080583612416.

The previous prime is 2213212121251. The next prime is 2213212121383. The reversal of 2213212121312 is 2131212123122.

It is a congruent 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, 116986478 + ... + 117005394.

It is an arithmetic number, because the mean of its divisors is an integer number (46469011743).

Almost surely, 2^{2213212121312} is an apocalyptic number.

It is an amenable number.

2213212121312 is an abundant number, since it is smaller than the sum of its proper divisors (2247813006016).

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

2213212121312 is a wasteful number, since it uses less digits than its factorization.

2213212121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19468 (or 19460 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 2213212121312 its reverse (2131212123122), we get a palindrome (4344424244434).

The spelling of 2213212121312 in words is "two trillion, two hundred thirteen billion, two hundred twelve million, one hundred twenty-one thousand, three hundred twelve".