213102212232 has 128 divisors (see below), whose sum is σ = 656164454400. Its totient is φ = 56162896128.

The previous prime is 213102212209. The next prime is 213102212261. The reversal of 213102212232 is 232212201312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 213102212199 and 213102212208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3108873 + ... + 3176679.

It is an arithmetic number, because the mean of its divisors is an integer number (5126284800).

Almost surely, 2^213102212232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213102212232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328082227200).

213102212232 is an abundant number, since it is smaller than the sum of its proper divisors (443062242168).

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

213102212232 is a wasteful number, since it uses less digits than its factorization.

213102212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69275 (or 69271 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213102212232 its reverse (232212201312), we get a palindrome (445314413544).

The spelling of 213102212232 in words is "two hundred thirteen billion, one hundred two million, two hundred twelve thousand, two hundred thirty-two".