2222212021212 has 24 divisors (see below), whose sum is σ = 5185688659200. Its totient is φ = 740662015216.

The previous prime is 2222212021187. The next prime is 2222212021261. The reversal of 2222212021212 is 2121202122222.

It is a congruent number.

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, 9292662 + ... + 9528797.

It is an arithmetic number, because the mean of its divisors is an integer number (216070360800).

Almost surely, 2^{2222212021212} is an apocalyptic number.

It is an amenable number.

2222212021212 is an abundant number, since it is smaller than the sum of its proper divisors (2963476637988).

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

2222212021212 is a wasteful number, since it uses less digits than its factorization.

2222212021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18831305 (or 18831303 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2222212021212 its reverse (2121202122222), we get a palindrome (4343414143434).

The spelling of 2222212021212 in words is "two trillion, two hundred twenty-two billion, two hundred twelve million, twenty-one thousand, two hundred twelve".