213003223212 has 96 divisors (see below), whose sum is σ = 538066174464. Its totient is φ = 65193984000.

The previous prime is 213003223211. The next prime is 213003223219. The reversal of 213003223212 is 212322300312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213003223211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32511337 + ... + 32517887.

It is an arithmetic number, because the mean of its divisors is an integer number (5604855984).

Almost surely, 2^213003223212 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 213003223212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269033087232).

213003223212 is an abundant number, since it is smaller than the sum of its proper divisors (325062951252).

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

213003223212 is a wasteful number, since it uses less digits than its factorization.

213003223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639 (or 7637 counting only the distinct ones).

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

Adding to 213003223212 its reverse (212322300312), we get a palindrome (425325523524).

The spelling of 213003223212 in words is "two hundred thirteen billion, three million, two hundred twenty-three thousand, two hundred twelve".