21021113223022 has 16 divisors (see below), whose sum is σ = 34401989446272. Its totient is φ = 9553994750520.

The previous prime is 21021113223013. The next prime is 21021113223023. The reversal of 21021113223022 is 22032231112012.

It is a super-2 number, since 2×21021113223022² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21021113222984 and 21021113223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021113223023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52632258 + ... + 53030149.

It is an arithmetic number, because the mean of its divisors is an integer number (2150124340392).

Almost surely, 2^{21021113223022} is an apocalyptic number.

21021113223022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21021113223022 is a deficient number, since it is larger than the sum of its proper divisors (13380876223250).

21021113223022 is a wasteful number, since it uses less digits than its factorization.

21021113223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105671463.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21021113223022 its reverse (22032231112012), we get a palindrome (43053344335034).

The spelling of 21021113223022 in words is "twenty-one trillion, twenty-one billion, one hundred thirteen million, two hundred twenty-three thousand, twenty-two".