21232202334 has 16 divisors (see below), whose sum is σ = 48530748288. Its totient is φ = 6066343512.

The previous prime is 21232202293. The next prime is 21232202339. The reversal of 21232202334 is 43320223212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232202339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252764272 + ... + 252764355.

It is an arithmetic number, because the mean of its divisors is an integer number (3033171768).

Almost surely, 2^21232202334 is an apocalyptic number.

21232202334 is an abundant number, since it is smaller than the sum of its proper divisors (27298545954).

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

21232202334 is a wasteful number, since it uses less digits than its factorization.

21232202334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505528639.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21232202334 its reverse (43320223212), we get a palindrome (64552425546).

The spelling of 21232202334 in words is "twenty-one billion, two hundred thirty-two million, two hundred two thousand, three hundred thirty-four".