213323022 has 96 divisors (see below), whose sum is σ = 531498240. Its totient is φ = 61205760.

The previous prime is 213322981. The next prime is 213323029. The reversal of 213323022 is 220323312.

It is a happy number.

213323022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213322986 and 213323004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213323029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 632838 + ... + 633174.

It is an arithmetic number, because the mean of its divisors is an integer number (5536440).

Almost surely, 2^213323022 is an apocalyptic number.

213323022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 213323022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265749120).

213323022 is an abundant number, since it is smaller than the sum of its proper divisors (318175218).

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

213323022 is a wasteful number, since it uses less digits than its factorization.

213323022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213323022 is about 14605.5818781725. The cubic root of 213323022 is about 597.5110057904.

Adding to 213323022 its reverse (220323312), we get a palindrome (433646334).

The spelling of 213323022 in words is "two hundred thirteen million, three hundred twenty-three thousand, twenty-two".