220121330 has 64 divisors (see below), whose sum is σ = 473558400. Its totient is φ = 72606720.

The previous prime is 220121309. The next prime is 220121347. The reversal of 220121330 is 33121022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83066 + ... + 85674.

It is an arithmetic number, because the mean of its divisors is an integer number (7399350).

Almost surely, 2^220121330 is an apocalyptic number.

220121330 is an abundant number, since it is smaller than the sum of its proper divisors (253437070).

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

220121330 is a wasteful number, since it uses less digits than its factorization.

220121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220121330 is about 14836.4864438990. The cubic root of 220121330 is about 603.7920299888.

Adding to 220121330 its reverse (33121022), we get a palindrome (253242352).

The spelling of 220121330 in words is "two hundred twenty million, one hundred twenty-one thousand, three hundred thirty".