221212032332 has 12 divisors (see below), whose sum is σ = 392021323680. Its totient is φ = 109205939856.

The previous prime is 221212032319. The next prime is 221212032361. The reversal of 221212032332 is 233230212122.

It is a junction number, because it is equal to n+sod(n) for n = 221212032298 and 221212032307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350018723 + ... + 350019354.

It is an arithmetic number, because the mean of its divisors is an integer number (32668443640).

Almost surely, 2^221212032332 is an apocalyptic number.

It is an amenable number.

221212032332 is a deficient number, since it is larger than the sum of its proper divisors (170809291348).

221212032332 is a wasteful number, since it uses less digits than its factorization.

221212032332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700038160 (or 700038158 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221212032332 its reverse (233230212122), we get a palindrome (454442244454).

The spelling of 221212032332 in words is "two hundred twenty-one billion, two hundred twelve million, thirty-two thousand, three hundred thirty-two".