1220432241 has 16 divisors (see below), whose sum is σ = 1860692864. Its totient is φ = 697019904.

The previous prime is 1220432231. The next prime is 1220432267. The reversal of 1220432241 is 1422340221.

It is not a de Polignac number, because 1220432241 - 2⁵ = 1220432209 is a prime.

It is a super-3 number, since 3×1220432241³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220432231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27951 + ... + 56763.

It is an arithmetic number, because the mean of its divisors is an integer number (116293304).

Almost surely, 2^1220432241 is an apocalyptic number.

It is an amenable number.

1220432241 is a deficient number, since it is larger than the sum of its proper divisors (640260623).

1220432241 is a wasteful number, since it uses less digits than its factorization.

1220432241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30840.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1220432241 is about 34934.6853571061. The cubic root of 1220432241 is about 1068.6559071501.

Adding to 1220432241 its reverse (1422340221), we get a palindrome (2642772462).

The spelling of 1220432241 in words is "one billion, two hundred twenty million, four hundred thirty-two thousand, two hundred forty-one".