23225414210021 has 4 divisors (see below), whose sum is σ = 24235214827872. Its totient is φ = 22215613592172.

The previous prime is 23225414209973. The next prime is 23225414210027. The reversal of 23225414210021 is 12001241452232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23225414210021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23225414210027) 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, 504900308891 + ... + 504900308936.

It is an arithmetic number, because the mean of its divisors is an integer number (6058803706968).

Almost surely, 2^{23225414210021} is an apocalyptic number.

It is an amenable number.

23225414210021 is a deficient number, since it is larger than the sum of its proper divisors (1009800617851).

23225414210021 is a wasteful number, since it uses less digits than its factorization.

23225414210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009800617850.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 23225414210021 its reverse (12001241452232), we get a palindrome (35226655662253).

The spelling of 23225414210021 in words is "twenty-three trillion, two hundred twenty-five billion, four hundred fourteen million, two hundred ten thousand, twenty-one".