220121153 has 8 divisors (see below), whose sum is σ = 255831360. Its totient is φ = 185477040.

The previous prime is 220121147. The next prime is 220121183. The reversal of 220121153 is 351121022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220121153 - 2¹⁶ = 220055617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220121183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266078 + ... + 266903.

It is an arithmetic number, because the mean of its divisors is an integer number (31978920).

Almost surely, 2^220121153 is an apocalyptic number.

It is an amenable number.

220121153 is a deficient number, since it is larger than the sum of its proper divisors (35710207).

220121153 is an equidigital number, since it uses as much as digits as its factorization.

220121153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533047.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 220121153 is about 14836.4804788737. The cubic root of 220121153 is about 603.7918681520.

Adding to 220121153 its reverse (351121022), we get a palindrome (571242175).

The spelling of 220121153 in words is "two hundred twenty million, one hundred twenty-one thousand, one hundred fifty-three".