220121332 has 12 divisors (see below), whose sum is σ = 385455616. Its totient is φ = 109991160.

The previous prime is 220121309. The next prime is 220121347. The reversal of 220121332 is 233121022.

It is a congruent number.

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, 9894 + ... + 23197.

Almost surely, 2^220121332 is an apocalyptic number.

It is an amenable number.

220121332 is a deficient number, since it is larger than the sum of its proper divisors (165334284).

220121332 is a wasteful number, since it uses less digits than its factorization.

220121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34758 (or 34756 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220121332 is about 14836.4865113004. The cubic root of 220121332 is about 603.7920318175.

Adding to 220121332 its reverse (233121022), we get a palindrome (453242354).

The spelling of 220121332 in words is "two hundred twenty million, one hundred twenty-one thousand, three hundred thirty-two".