22230203031021 has 4 divisors (see below), whose sum is σ = 29640270708032. Its totient is φ = 14820135354012.

The previous prime is 22230203031019. The next prime is 22230203031121. The reversal of 22230203031021 is 12013030203222.

It is a happy number.

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 not a de Polignac number, because 22230203031021 - 2¹ = 22230203031019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230203031121) 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, 3705033838501 + ... + 3705033838506.

It is an arithmetic number, because the mean of its divisors is an integer number (7410067677008).

Almost surely, 2^{22230203031021} is an apocalyptic number.

It is an amenable number.

22230203031021 is a deficient number, since it is larger than the sum of its proper divisors (7410067677011).

22230203031021 is an equidigital number, since it uses as much as digits as its factorization.

22230203031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410067677010.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22230203031021 its reverse (12013030203222), we get a palindrome (34243233234243).

The spelling of 22230203031021 in words is "twenty-two trillion, two hundred thirty billion, two hundred three million, thirty-one thousand, twenty-one".