22021101212022 has 80 divisors (see below), whose sum is σ = 54477905372352. Its totient is φ = 6592662604080.

The previous prime is 22021101212017. The next prime is 22021101212023. The reversal of 22021101212022 is 22021210112022.

It is a happy number.

22021101212022 is a `hidden beast` number, since 220 + 211 + 0 + 1 + 212 + 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 = 22021101211986 and 22021101212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021101212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74294988 + ... + 74590799.

Almost surely, 2^{22021101212022} is an apocalyptic number.

22021101212022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22021101212022 is an abundant number, since it is smaller than the sum of its proper divisors (32456804160330).

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

22021101212022 is a wasteful number, since it uses less digits than its factorization.

22021101212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148885895 (or 148885886 counting only the distinct ones).

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

Adding to 22021101212022 its reverse (22021210112022), we get a palindrome (44042311324044).

The spelling of 22021101212022 in words is "twenty-two trillion, twenty-one billion, one hundred one million, two hundred twelve thousand, twenty-two".