213122332110 has 128 divisors (see below), whose sum is σ = 536459733504. Its totient is φ = 54134023680.

The previous prime is 213122332099. The next prime is 213122332127. The reversal of 213122332110 is 11233221312.

It is a super-2 number, since 2×213122332110² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12113520 + ... + 12131100.

It is an arithmetic number, because the mean of its divisors is an integer number (4191091668).

Almost surely, 2^213122332110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213122332110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268229866752).

213122332110 is an abundant number, since it is smaller than the sum of its proper divisors (323337401394).

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

213122332110 is a wasteful number, since it uses less digits than its factorization.

213122332110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17858.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213122332110 its reverse (11233221312), we get a palindrome (224355553422).

The spelling of 213122332110 in words is "two hundred thirteen billion, one hundred twenty-two million, three hundred thirty-two thousand, one hundred ten".