21322413213 has 16 divisors (see below), whose sum is σ = 28661952000. Its totient is φ = 14099260464.

The previous prime is 21322413181. The next prime is 21322413223. The reversal of 21322413213 is 31231422312.

It is not a de Polignac number, because 21322413213 - 2⁵ = 21322413181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322413223) 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, 200320 + ... + 287702.

It is an arithmetic number, because the mean of its divisors is an integer number (1791372000).

Almost surely, 2^21322413213 is an apocalyptic number.

It is an amenable number.

21322413213 is a deficient number, since it is larger than the sum of its proper divisors (7339538787).

21322413213 is a wasteful number, since it uses less digits than its factorization.

21322413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88048.

The product of its digits is 1728, while the sum is 24.

Adding to 21322413213 its reverse (31231422312), we get a palindrome (52553835525).

Subtracting 21322413213 from its reverse (31231422312), we obtain a palindrome (9909009099).

The spelling of 21322413213 in words is "twenty-one billion, three hundred twenty-two million, four hundred thirteen thousand, two hundred thirteen".