22121100000023 has 8 divisors (see below), whose sum is σ = 22226460181296. Its totient is φ = 22015744732800.

The previous prime is 22121100000019. The next prime is 22121100000061. The reversal of 22121100000023 is 32000000112122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22121100000023 - 2² = 22121100000019 is a prime.

It is a super-2 number, since 2×22121100000023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121099999953 and 22121100000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121100000323) 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, 7959365 + ... + 10372737.

It is an arithmetic number, because the mean of its divisors is an integer number (2778307522662).

Almost surely, 2^{22121100000023} is an apocalyptic number.

22121100000023 is a deficient number, since it is larger than the sum of its proper divisors (105360181273).

22121100000023 is a wasteful number, since it uses less digits than its factorization.

22121100000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457025.

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

Adding to 22121100000023 its reverse (32000000112122), we get a palindrome (54121100112145).

The spelling of 22121100000023 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred million, twenty-three", and thus it is an aban number.