22012121022112 has 48 divisors (see below), whose sum is σ = 47106097329312. Its totient is φ = 10064492409600.

The previous prime is 22012121022079. The next prime is 22012121022113. The reversal of 22012121022112 is 21122012121022.

It is a super-4 number, since 4×22012121022112⁴ (a number of 54 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22012121022112.

It is not an unprimeable number, because it can be changed into a prime (22012121022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247216014 + ... + 247305037.

It is an arithmetic number, because the mean of its divisors is an integer number (981377027694).

Almost surely, 2^{22012121022112} is an apocalyptic number.

It is an amenable number.

22012121022112 is an abundant number, since it is smaller than the sum of its proper divisors (25093976307200).

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

22012121022112 is a wasteful number, since it uses less digits than its factorization.

22012121022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494521181 (or 494521173 counting only the distinct ones).

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

Adding to 22012121022112 its reverse (21122012121022), we get a palindrome (43134133143134).

The spelling of 22012121022112 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, twenty-two thousand, one hundred twelve".