3120001220 has 24 divisors (see below), whose sum is σ = 7488003264. Its totient is φ = 1069714656.

The previous prime is 3120001207. The next prime is 3120001223. The reversal of 3120001220 is 221000213.

It is a happy number.

It is a super-2 number, since 2×3120001220² = 19468815225602976800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3120001223) 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, 11142722 + ... + 11143001.

It is an arithmetic number, because the mean of its divisors is an integer number (312000136).

Almost surely, 2^3120001220 is an apocalyptic number.

It is an amenable number.

3120001220 is an abundant number, since it is smaller than the sum of its proper divisors (4368002044).

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

3120001220 is a wasteful number, since it uses less digits than its factorization.

3120001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22285739 (or 22285737 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3120001220 is about 55856.9710958265. The cubic root of 3120001220 is about 1461.2289052718.

Adding to 3120001220 its reverse (221000213), we get a palindrome (3341001433).

The spelling of 3120001220 in words is "three billion, one hundred twenty million, one thousand, two hundred twenty".