22120021110023 has 4 divisors (see below), whose sum is σ = 22717859518440. Its totient is φ = 21522182701608.

The previous prime is 22120021110017. The next prime is 22120021110073. The reversal of 22120021110023 is 32001112002122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22120021110023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120021109983 and 22120021110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120021110073) 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, 298919204153 + ... + 298919204226.

It is an arithmetic number, because the mean of its divisors is an integer number (5679464879610).

Almost surely, 2^{22120021110023} is an apocalyptic number.

22120021110023 is a deficient number, since it is larger than the sum of its proper divisors (597838408417).

22120021110023 is an equidigital number, since it uses as much as digits as its factorization.

22120021110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597838408416.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22120021110023 its reverse (32001112002122), we get a palindrome (54121133112145).

The spelling of 22120021110023 in words is "twenty-two trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand, twenty-three".