1112002261 has 2 divisors, whose sum is σ = 1112002262. Its totient is φ = 1112002260.

The previous prime is 1112002259. The next prime is 1112002289. The reversal of 1112002261 is 1622002111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848556900 + 263445361 = 29130^2 + 16231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112002261 - 2¹ = 1112002259 is a prime.

It is a super-2 number, since 2×1112002261² = 2473098056938224242, which contains 22 as substring.

Together with 1112002259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112003261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556001130 + 556001131.

It is an arithmetic number, because the mean of its divisors is an integer number (556001131).

Almost surely, 2^1112002261 is an apocalyptic number.

It is an amenable number.

1112002261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112002261 is an equidigital number, since it uses as much as digits as its factorization.

1112002261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1112002261 is about 33346.6979024910. The cubic root of 1112002261 is about 1036.0209956464.

Adding to 1112002261 its reverse (1622002111), we get a palindrome (2734004372).

The spelling of 1112002261 in words is "one billion, one hundred twelve million, two thousand, two hundred sixty-one".