3101232220 has 12 divisors (see below), whose sum is σ = 6512587704. Its totient is φ = 1240492880.

The previous prime is 3101232151. The next prime is 3101232223. The reversal of 3101232220 is 222321013.

It is a super-2 number, since 2×3101232220² = 19235282564732256800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3101232194 and 3101232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101232223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77530786 + ... + 77530825.

It is an arithmetic number, because the mean of its divisors is an integer number (542715642).

Almost surely, 2^3101232220 is an apocalyptic number.

It is an amenable number.

3101232220 is an abundant number, since it is smaller than the sum of its proper divisors (3411355484).

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

3101232220 is a wasteful number, since it uses less digits than its factorization.

3101232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155061620 (or 155061618 counting only the distinct ones).

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

The square root of 3101232220 is about 55688.7081911585. The cubic root of 3101232220 is about 1458.2929037463.

Adding to 3101232220 its reverse (222321013), we get a palindrome (3323553233).

The spelling of 3101232220 in words is "three billion, one hundred one million, two hundred thirty-two thousand, two hundred twenty".