22021210211022 has 192 divisors, whose sum is σ = 56480337331200. Its totient is φ = 6306396497280.

The previous prime is 22021210211009. The next prime is 22021210211051. The reversal of 22021210211022 is 22011201212022.

It is a happy number.

22021210211022 is a `hidden beast` number, since 220 + 2 + 1 + 210 + 211 + 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 = 22021210210986 and 22021210211004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 87577963 + ... + 87829049.

It is an arithmetic number, because the mean of its divisors is an integer number (294168423600).

Almost surely, 2^{22021210211022} is an apocalyptic number.

22021210211022 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 22021210211022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28240168665600).

22021210211022 is an abundant number, since it is smaller than the sum of its proper divisors (34459127120178).

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

22021210211022 is a wasteful number, since it uses less digits than its factorization.

22021210211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251556 (or 251531 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22021210211022 its reverse (22011201212022), we get a palindrome (44032411423044).

The spelling of 22021210211022 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, two hundred eleven thousand, twenty-two".