21110202020022 has 16 divisors (see below), whose sum is σ = 42233359097280. Its totient is φ = 7034574830472.

The previous prime is 21110202019993. The next prime is 21110202020027. The reversal of 21110202020022 is 22002020201112.

It is a super-2 number, since 2×21110202020022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110202019983 and 21110202020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110202020027) 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, 539772868 + ... + 539811975.

It is an arithmetic number, because the mean of its divisors is an integer number (2639584943580).

Almost surely, 2^{21110202020022} is an apocalyptic number.

21110202020022 is an abundant number, since it is smaller than the sum of its proper divisors (21123157077258).

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

21110202020022 is a wasteful number, since it uses less digits than its factorization.

21110202020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079588107.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21110202020022 its reverse (22002020201112), we get a palindrome (43112222221134).

The spelling of 21110202020022 in words is "twenty-one trillion, one hundred ten billion, two hundred two million, twenty thousand, twenty-two".