21230233043222 has 32 divisors (see below), whose sum is σ = 37174937057280. Its totient is φ = 8903669770080.

The previous prime is 21230233043207. The next prime is 21230233043237. The reversal of 21230233043222 is 22234033203212.

It is an interprime number because it is at equal distance from previous prime (21230233043207) and next prime (21230233043237).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596404 + ... + 6708872.

It is an arithmetic number, because the mean of its divisors is an integer number (1161716783040).

Almost surely, 2^{21230233043222} is an apocalyptic number.

21230233043222 is a deficient number, since it is larger than the sum of its proper divisors (15944704014058).

21230233043222 is a wasteful number, since it uses less digits than its factorization.

21230233043222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118836.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 21230233043222 its reverse (22234033203212), we get a palindrome (43464266246434).

The spelling of 21230233043222 in words is "twenty-one trillion, two hundred thirty billion, two hundred thirty-three million, forty-three thousand, two hundred twenty-two".