21233322122 has 8 divisors (see below), whose sum is σ = 31851941472. Its totient is φ = 10616008300.

The previous prime is 21233322113. The next prime is 21233322191. The reversal of 21233322122 is 22122333212.

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

It is a super-2 number, since 2×21233322122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284654 + ... + 351417.

It is an arithmetic number, because the mean of its divisors is an integer number (3981492684).

Almost surely, 2^21233322122 is an apocalyptic number.

21233322122 is a deficient number, since it is larger than the sum of its proper divisors (10618619350).

21233322122 is a wasteful number, since it uses less digits than its factorization.

21233322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652764.

The product of its digits is 1728, while the sum is 23.

Adding to 21233322122 its reverse (22122333212), we get a palindrome (43355655334).

The spelling of 21233322122 in words is "twenty-one billion, two hundred thirty-three million, three hundred twenty-two thousand, one hundred twenty-two".