22120112021212 has 12 divisors (see below), whose sum is σ = 39145142060640. Its totient is φ = 10935785718176.

The previous prime is 22120112021209. The next prime is 22120112021221. The reversal of 22120112021212 is 21212021102122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120112021212.

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, 31067572708 + ... + 31067573419.

It is an arithmetic number, because the mean of its divisors is an integer number (3262095171720).

Almost surely, 2^{22120112021212} is an apocalyptic number.

It is an amenable number.

22120112021212 is a deficient number, since it is larger than the sum of its proper divisors (17025030039428).

22120112021212 is a wasteful number, since it uses less digits than its factorization.

22120112021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62135146220 (or 62135146218 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22120112021212 its reverse (21212021102122), we get a palindrome (43332133123334).

The spelling of 22120112021212 in words is "twenty-two trillion, one hundred twenty billion, one hundred twelve million, twenty-one thousand, two hundred twelve".