11100222157 has 2 divisors, whose sum is σ = 11100222158. Its totient is φ = 11100222156.

The previous prime is 11100222053. The next prime is 11100222167. The reversal of 11100222157 is 75122200111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7952002276 + 3148219881 = 89174^2 + 56109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100222157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100222167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550111078 + 5550111079.

It is an arithmetic number, because the mean of its divisors is an integer number (5550111079).

Almost surely, 2^11100222157 is an apocalyptic number.

It is an amenable number.

11100222157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100222157 is an equidigital number, since it uses as much as digits as its factorization.

11100222157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 11100222157 its reverse (75122200111), we get a palindrome (86222422268).

The spelling of 11100222157 in words is "eleven billion, one hundred million, two hundred twenty-two thousand, one hundred fifty-seven".