22001112220012 has 24 divisors (see below), whose sum is σ = 38551878837360. Its totient is φ = 10986292100160.

The previous prime is 22001112219979. The next prime is 22001112220019. The reversal of 22001112220012 is 21002221110022.

It is a happy number.

It is a super-2 number, since 2×22001112220012² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22001112220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37046883 + ... + 37636069.

It is an arithmetic number, because the mean of its divisors is an integer number (1606328284890).

Almost surely, 2^{22001112220012} is an apocalyptic number.

It is an amenable number.

22001112220012 is a deficient number, since it is larger than the sum of its proper divisors (16550766617348).

22001112220012 is a wasteful number, since it uses less digits than its factorization.

22001112220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601281 (or 601279 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22001112220012 its reverse (21002221110022), we get a palindrome (43003333330034).

The spelling of 22001112220012 in words is "twenty-two trillion, one billion, one hundred twelve million, two hundred twenty thousand, twelve".