213221201232 has 80 divisors (see below), whose sum is σ = 593456335808. Its totient is φ = 65577323520.

The previous prime is 213221201201. The next prime is 213221201243. The reversal of 213221201232 is 232102122312.

It is a junction number, because it is equal to n+sod(n) for n = 213221201199 and 213221201208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1348443 + ... + 1498245.

Almost surely, 2^213221201232 is an apocalyptic number.

It is an amenable number.

213221201232 is an abundant number, since it is smaller than the sum of its proper divisors (380235134576).

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

213221201232 is a wasteful number, since it uses less digits than its factorization.

213221201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152108 (or 152102 counting only the distinct ones).

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

Adding to 213221201232 its reverse (232102122312), we get a palindrome (445323323544).

The spelling of 213221201232 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred one thousand, two hundred thirty-two".