3111221130 has 32 divisors (see below), whose sum is σ = 7480620864. Its totient is φ = 828137856.

The previous prime is 3111221107. The next prime is 3111221147. The reversal of 3111221130 is 311221113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78387 + ... + 111206.

It is an arithmetic number, because the mean of its divisors is an integer number (233769402).

Almost surely, 2^3111221130 is an apocalyptic number.

3111221130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3111221130 is an abundant number, since it is smaller than the sum of its proper divisors (4369399734).

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

3111221130 is a wasteful number, since it uses less digits than its factorization.

3111221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190150.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 3111221130 is about 55778.3213264795. The cubic root of 3111221130 is about 1459.8569213013.

Adding to 3111221130 its reverse (311221113), we get a palindrome (3422442243).

The spelling of 3111221130 in words is "three billion, one hundred eleven million, two hundred twenty-one thousand, one hundred thirty".