12212211012212 has 12 divisors (see below), whose sum is σ = 21371723273376. Its totient is φ = 6106004362680.

The previous prime is 12212211012173. The next prime is 12212211012233. The reversal of 12212211012212 is 21221011221221.

It is a super-2 number, since 2×12212211012212² (a number of 27 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, 25013864 + ... + 25497407.

It is an arithmetic number, because the mean of its divisors is an integer number (1780976939448).

Almost surely, 2^{12212211012212} is an apocalyptic number.

It is an amenable number.

12212211012212 is a deficient number, since it is larger than the sum of its proper divisors (9159512261164).

12212211012212 is a wasteful number, since it uses less digits than its factorization.

12212211012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50571718 (or 50571716 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212211012212 its reverse (21221011221221), we get a palindrome (33433222233433).

The spelling of 12212211012212 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, twelve thousand, two hundred twelve".