22000221221022 has 64 divisors (see below), whose sum is σ = 53338106949120. Its totient is φ = 6666204038400.

The previous prime is 22000221220979. The next prime is 22000221221029. The reversal of 22000221221022 is 22012212200022.

22000221221022 is a `hidden beast` number, since 2 + 200 + 0 + 221 + 221 + 0 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22000221220986 and 22000221221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000221221029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6043783 + ... + 8973725.

It is an arithmetic number, because the mean of its divisors is an integer number (833407921080).

Almost surely, 2^{22000221221022} is an apocalyptic number.

22000221221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22000221221022 is an abundant number, since it is smaller than the sum of its proper divisors (31337885728098).

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

22000221221022 is a wasteful number, since it uses less digits than its factorization.

22000221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942606 (or 2942600 counting only the distinct ones).

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

Adding to 22000221221022 its reverse (22012212200022), we get a palindrome (44012433421044).

The spelling of 22000221221022 in words is "twenty-two trillion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".