22221210101022 has 48 divisors (see below), whose sum is σ = 50681150732160. Its totient is φ = 7017058383696.

The previous prime is 22221210100993. The next prime is 22221210101029. The reversal of 22221210101022 is 22010101212222.

It is a happy number.

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 = 22221210100986 and 22221210101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221210101029) 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 23 ways as a sum of consecutive naturals, for example, 14145613 + ... + 15637799.

It is an arithmetic number, because the mean of its divisors is an integer number (1055857306920).

Almost surely, 2^{22221210101022} is an apocalyptic number.

22221210101022 is an abundant number, since it is smaller than the sum of its proper divisors (28459940631138).

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

22221210101022 is a wasteful number, since it uses less digits than its factorization.

22221210101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535757 (or 1535754 counting only the distinct ones).

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

Adding to 22221210101022 its reverse (22010101212222), we get a palindrome (44231311313244).

The spelling of 22221210101022 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred ten million, one hundred one thousand, twenty-two".