21733245222 has 32 divisors (see below), whose sum is σ = 48075209952. Its totient is φ = 6506417664.

The previous prime is 21733245211. The next prime is 21733245227. The reversal of 21733245222 is 22254233712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21733245227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3762403 + ... + 3768174.

It is an arithmetic number, because the mean of its divisors is an integer number (1502350311).

Almost surely, 2^21733245222 is an apocalyptic number.

21733245222 is an abundant number, since it is smaller than the sum of its proper divisors (26341964730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21733245222 is a wasteful number, since it uses less digits than its factorization.

21733245222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530632.

The product of its digits is 40320, while the sum is 33.

Adding to 21733245222 its reverse (22254233712), we get a palindrome (43987478934).

The spelling of 21733245222 in words is "twenty-one billion, seven hundred thirty-three million, two hundred forty-five thousand, two hundred twenty-two".