213221222432 has 48 divisors (see below), whose sum is σ = 420671653920. Its totient is φ = 106384223232.

The previous prime is 213221222411. The next prime is 213221222443. The reversal of 213221222432 is 234222122312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40742888 + ... + 40748120.

It is an arithmetic number, because the mean of its divisors is an integer number (8763992790).

Almost surely, 2^213221222432 is an apocalyptic number.

It is an amenable number.

213221222432 is a deficient number, since it is larger than the sum of its proper divisors (207450431488).

213221222432 is a wasteful number, since it uses less digits than its factorization.

213221222432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705 (or 7697 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 213221222432 its reverse (234222122312), we get a palindrome (447443344744).

The spelling of 213221222432 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred twenty-two thousand, four hundred thirty-two".