22011220022000 has 80 divisors (see below), whose sum is σ = 58061596436064. Its totient is φ = 8004080000000.

The previous prime is 22011220021993. The next prime is 22011220022009. The reversal of 22011220022000 is 22002211022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011220022009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500233001 + ... + 500277000.

Almost surely, 2^{22011220022000} is an apocalyptic number.

22011220022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011220022000 is an abundant number, since it is smaller than the sum of its proper divisors (36050376414064).

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

22011220022000 is a wasteful number, since it uses less digits than its factorization.

22011220022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000510035 (or 1000510019 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22011220022000 its reverse (22002211022), we get a palindrome (22033222233022).

The spelling of 22011220022000 in words is "twenty-two trillion, eleven billion, two hundred twenty million, twenty-two thousand".