1100220131 has 2 divisors, whose sum is σ = 1100220132. Its totient is φ = 1100220130.

The previous prime is 1100220119. The next prime is 1100220193. The reversal of 1100220131 is 1310220011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100220131 - 2³⁰ = 26478307 is a prime.

It is a super-2 number, since 2×1100220131² = 2420968673315314322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550110065 + 550110066.

It is an arithmetic number, because the mean of its divisors is an integer number (550110066).

Almost surely, 2^1100220131 is an apocalyptic number.

1100220131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100220131 is an equidigital number, since it uses as much as digits as its factorization.

1100220131 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 11.

The square root of 1100220131 is about 33169.5663372315. The cubic root of 1100220131 is about 1032.3489705163.

Adding to 1100220131 its reverse (1310220011), we get a palindrome (2410440142).

The spelling of 1100220131 in words is "one billion, one hundred million, two hundred twenty thousand, one hundred thirty-one".