22220021021022 has 96 divisors (see below), whose sum is σ = 52655027274720. Its totient is φ = 6716039040000.

The previous prime is 22220021020931. The next prime is 22220021021083. The reversal of 22220021021022 is 22012012002222.

22220021021022 is a `hidden beast` number, since 2 + 2 + 220 + 0 + 210 + 210 + 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 = 22220021020986 and 22220021021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1038259522 + ... + 1038280922.

It is an arithmetic number, because the mean of its divisors is an integer number (548489867445).

Almost surely, 2^{22220021021022} is an apocalyptic number.

22220021021022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220021021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26327513637360).

22220021021022 is an abundant number, since it is smaller than the sum of its proper divisors (30435006253698).

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

22220021021022 is a wasteful number, since it uses less digits than its factorization.

22220021021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34650 (or 34647 counting only the distinct ones).

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

Adding to 22220021021022 its reverse (22012012002222), we get a palindrome (44232033023244).

The spelling of 22220021021022 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, twenty-two".