22002121022022 has 128 divisors (see below), whose sum is σ = 50083246080000. Its totient is φ = 7157532815136.

The previous prime is 22002121021939. The next prime is 22002121022083. The reversal of 22002121022022 is 22022012120022.

22002121022022 is a `hidden beast` number, since 2 + 200 + 212 + 10 + 220 + 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 = 22002121021986 and 22002121022004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 346136679 + ... + 346200237.

It is an arithmetic number, because the mean of its divisors is an integer number (391275360000).

Almost surely, 2^{22002121022022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002121022022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25041623040000).

22002121022022 is an abundant number, since it is smaller than the sum of its proper divisors (28081125057978).

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

22002121022022 is a wasteful number, since it uses less digits than its factorization.

22002121022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64415 (or 64409 counting only the distinct ones).

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

Adding to 22002121022022 its reverse (22022012120022), we get a palindrome (44024133142044).

The spelling of 22002121022022 in words is "twenty-two trillion, two billion, one hundred twenty-one million, twenty-two thousand, twenty-two".