3111112201 has 2 divisors, whose sum is σ = 3111112202. Its totient is φ = 3111112200.

The previous prime is 3111112177. The next prime is 3111112211. The reversal of 3111112201 is 1022111113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2714305801 + 396806400 = 52099^2 + 19920^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111112201 - 2¹¹ = 3111110153 is a prime.

It is a super-2 number, since 2×3111112201² = 19358038254422128802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3111112211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555556100 + 1555556101.

It is an arithmetic number, because the mean of its divisors is an integer number (1555556101).

Almost surely, 2^3111112201 is an apocalyptic number.

It is an amenable number.

3111112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111112201 is an equidigital number, since it uses as much as digits as its factorization.

3111112201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 3111112201 is about 55777.3448722687. The cubic root of 3111112201 is about 1459.8398837670.

Adding to 3111112201 its reverse (1022111113), we get a palindrome (4133223314).

The spelling of 3111112201 in words is "three billion, one hundred eleven million, one hundred twelve thousand, two hundred one".