22102012001023 has 4 divisors (see below), whose sum is σ = 22103141345208. Its totient is φ = 22100882656840.

The previous prime is 22102012001009. The next prime is 22102012001087. The reversal of 22102012001023 is 32010021020122.

It is a happy number.

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-22102012001023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102012000988 and 22102012001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102012005023) 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, 564642736 + ... + 564681877.

It is an arithmetic number, because the mean of its divisors is an integer number (5525785336302).

Almost surely, 2^{22102012001023} is an apocalyptic number.

22102012001023 is a deficient number, since it is larger than the sum of its proper divisors (1129344185).

22102012001023 is a wasteful number, since it uses less digits than its factorization.

22102012001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129344184.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22102012001023 its reverse (32010021020122), we get a palindrome (54112033021145).

The spelling of 22102012001023 in words is "twenty-two trillion, one hundred two billion, twelve million, one thousand, twenty-three".