22002021222012 has 144 divisors (see below), whose sum is σ = 64080281967520. Its totient is φ = 6308404416000.

The previous prime is 22002021221959. The next prime is 22002021222017. The reversal of 22002021222012 is 21022212020022.

22002021222012 is a `hidden beast` number, since 2 + 200 + 20 + 212 + 220 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002021222017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19739239 + ... + 20824062.

Almost surely, 2^{22002021222012} is an apocalyptic number.

It is an amenable number.

22002021222012 is an abundant number, since it is smaller than the sum of its proper divisors (42078260745508).

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

22002021222012 is a wasteful number, since it uses less digits than its factorization.

22002021222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40563404 (or 40563399 counting only the distinct ones).

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

Adding to 22002021222012 its reverse (21022212020022), we get a palindrome (43024233242034).

The spelling of 22002021222012 in words is "twenty-two trillion, two billion, twenty-one million, two hundred twenty-two thousand, twelve".