22121110211012 has 12 divisors (see below), whose sum is σ = 40046837451180. Its totient is φ = 10679156653536.

The previous prime is 22121110211009. The next prime is 22121110211047. The reversal of 22121110211012 is 21011201112122.

It can be written as a sum of positive squares in 2 ways, for example, as 19021059806596 + 3100050404416 = 4361314^2 + 1760696^2 .

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, 95349612863 + ... + 95349613094.

It is an arithmetic number, because the mean of its divisors is an integer number (3337236454265).

Almost surely, 2^{22121110211012} is an apocalyptic number.

It is an amenable number.

22121110211012 is a deficient number, since it is larger than the sum of its proper divisors (17925727240168).

22121110211012 is a wasteful number, since it uses less digits than its factorization.

22121110211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190699225990 (or 190699225988 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22121110211012 its reverse (21011201112122), we get a palindrome (43132311323134).

The spelling of 22121110211012 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred ten million, two hundred eleven thousand, twelve".