21023110022 has 8 divisors (see below), whose sum is σ = 31544883000. Its totient is φ = 10508149024.

The previous prime is 21023110013. The next prime is 21023110037. The reversal of 21023110022 is 22001132012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21023109979 and 21023110006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695272 + ... + 1707627.

It is an arithmetic number, because the mean of its divisors is an integer number (3943110375).

Almost surely, 2^21023110022 is an apocalyptic number.

21023110022 is a deficient number, since it is larger than the sum of its proper divisors (10521772978).

21023110022 is a wasteful number, since it uses less digits than its factorization.

21023110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405990.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21023110022 its reverse (22001132012), we get a palindrome (43024242034).

The spelling of 21023110022 in words is "twenty-one billion, twenty-three million, one hundred ten thousand, twenty-two".