213030222312 has 64 divisors (see below), whose sum is σ = 547473326400. Its totient is φ = 69027240960.

The previous prime is 213030222311. The next prime is 213030222389. The reversal of 213030222312 is 213222030312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213030222311) 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, 858864 + ... + 1078752.

It is an arithmetic number, because the mean of its divisors is an integer number (8554270725).

Almost surely, 2^213030222312 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 213030222312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273736663200).

213030222312 is an abundant number, since it is smaller than the sum of its proper divisors (334443104088).

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

213030222312 is a wasteful number, since it uses less digits than its factorization.

213030222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221026 (or 221022 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213030222312 its reverse (213222030312), we get a palindrome (426252252624).

The spelling of 213030222312 in words is "two hundred thirteen billion, thirty million, two hundred twenty-two thousand, three hundred twelve".