22201222020012 has 72 divisors (see below), whose sum is σ = 64626458088192. Its totient is φ = 6294784860000.

The previous prime is 22201222019953. The next prime is 22201222020013. The reversal of 22201222020012 is 21002022210222.

22201222020012 is a `hidden beast` number, since 2 + 220 + 12 + 220 + 200 + 12 = 666.

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 (22201222020013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336226864 + ... + 336292887.

Almost surely, 2^{22201222020012} is an apocalyptic number.

It is an amenable number.

22201222020012 is an abundant number, since it is smaller than the sum of its proper divisors (42425236068180).

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

22201222020012 is a wasteful number, since it uses less digits than its factorization.

22201222020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672519899 (or 672519894 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22201222020012 its reverse (21002022210222), we get a palindrome (43203244230234).

The spelling of 22201222020012 in words is "twenty-two trillion, two hundred one billion, two hundred twenty-two million, twenty thousand, twelve".