22021200023 has 4 divisors (see below), whose sum is σ = 22053921648. Its totient is φ = 21988478400.

The previous prime is 22021200011. The next prime is 22021200041. The reversal of 22021200023 is 32000212022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22021200023 - 2¹² = 22021195927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021199980 and 22021200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021200623) 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, 16359803 + ... + 16361148.

It is an arithmetic number, because the mean of its divisors is an integer number (5513480412).

Almost surely, 2^22021200023 is an apocalyptic number.

22021200023 is a deficient number, since it is larger than the sum of its proper divisors (32721625).

22021200023 is an equidigital number, since it uses as much as digits as its factorization.

22021200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32721624.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22021200023 its reverse (32000212022), we get a palindrome (54021412045).

The spelling of 22021200023 in words is "twenty-two billion, twenty-one million, two hundred thousand, twenty-three".