21130023022 has 8 divisors (see below), whose sum is σ = 31695667200. Its totient is φ = 10564800624.

The previous prime is 21130022989. The next prime is 21130023029. The reversal of 21130023022 is 22032003112.

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 = 21130022987 and 21130023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130023029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99354 + ... + 228322.

It is an arithmetic number, because the mean of its divisors is an integer number (3961958400).

Almost surely, 2^21130023022 is an apocalyptic number.

21130023022 is a deficient number, since it is larger than the sum of its proper divisors (10565644178).

21130023022 is a wasteful number, since it uses less digits than its factorization.

21130023022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210890.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21130023022 its reverse (22032003112), we get a palindrome (43162026134).

The spelling of 21130023022 in words is "twenty-one billion, one hundred thirty million, twenty-three thousand, twenty-two".