213311022 has 32 divisors (see below), whose sum is σ = 434865024. Its totient is φ = 69736800.

The previous prime is 213311011. The next prime is 213311029. The reversal of 213311022 is 220113312.

It is a junction number, because it is equal to n+sod(n) for n = 213310992 and 213311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213311029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179113 + ... + 180299.

It is an arithmetic number, because the mean of its divisors is an integer number (13589532).

Almost surely, 2^213311022 is an apocalyptic number.

213311022 is an abundant number, since it is smaller than the sum of its proper divisors (221554002).

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

213311022 is a wasteful number, since it uses less digits than its factorization.

213311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213311022 is about 14605.1710705490. The cubic root of 213311022 is about 597.4998017074.

Adding to 213311022 its reverse (220113312), we get a palindrome (433424334).

The spelling of 213311022 in words is "two hundred thirteen million, three hundred eleven thousand, twenty-two".