22201112220012 has 96 divisors (see below), whose sum is σ = 62977349111040. Its totient is φ = 6707646408960.

The previous prime is 22201112219933. The next prime is 22201112220041. The reversal of 22201112220012 is 21002221110222.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27326358 + ... + 28127069.

It is an arithmetic number, because the mean of its divisors is an integer number (656014053240).

Almost surely, 2^{22201112220012} is an apocalyptic number.

22201112220012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22201112220012 is an abundant number, since it is smaller than the sum of its proper divisors (40776236891028).

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

22201112220012 is a wasteful number, since it uses less digits than its factorization.

22201112220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55453788 (or 55453780 counting only the distinct ones).

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

Adding to 22201112220012 its reverse (21002221110222), we get a palindrome (43203333330234).

The spelling of 22201112220012 in words is "twenty-two trillion, two hundred one billion, one hundred twelve million, two hundred twenty thousand, twelve".