22212201201212 has 12 divisors (see below), whose sum is σ = 42405111384216. Its totient is φ = 10096455091440.

The previous prime is 22212201201173. The next prime is 22212201201283. The reversal of 22212201201212 is 21210210221222.

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, 252411377243 + ... + 252411377330.

It is an arithmetic number, because the mean of its divisors is an integer number (3533759282018).

Almost surely, 2^{22212201201212} is an apocalyptic number.

22212201201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22212201201212 is a deficient number, since it is larger than the sum of its proper divisors (20192910183004).

22212201201212 is a wasteful number, since it uses less digits than its factorization.

22212201201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504822754588 (or 504822754586 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22212201201212 its reverse (21210210221222), we get a palindrome (43422411422434).

The spelling of 22212201201212 in words is "twenty-two trillion, two hundred twelve billion, two hundred one million, two hundred one thousand, two hundred twelve".