22112202120012 has 18 divisors (see below), whose sum is σ = 55894733136788. Its totient is φ = 7370734039992.

The previous prime is 22112202119983. The next prime is 22112202120017. The reversal of 22112202120012 is 21002120221122.

It is a happy number.

22112202120012 is a `hidden beast` number, since 2 + 211 + 220 + 21 + 200 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22112202120017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307113918298 + ... + 307113918369.

Almost surely, 2^{22112202120012} is an apocalyptic number.

It is an amenable number.

22112202120012 is an abundant number, since it is smaller than the sum of its proper divisors (33782531016776).

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

22112202120012 is a wasteful number, since it uses less digits than its factorization.

22112202120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614227836677 (or 614227836672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22112202120012 its reverse (21002120221122), we get a palindrome (43114322341134).

The spelling of 22112202120012 in words is "twenty-two trillion, one hundred twelve billion, two hundred two million, one hundred twenty thousand, twelve".