11100122251 has 2 divisors, whose sum is σ = 11100122252. Its totient is φ = 11100122250.

The previous prime is 11100122233. The next prime is 11100122287. The reversal of 11100122251 is 15222100111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11100122251 - 2⁷ = 11100122123 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100122051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550061125 + 5550061126.

It is an arithmetic number, because the mean of its divisors is an integer number (5550061126).

Almost surely, 2^11100122251 is an apocalyptic number.

11100122251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100122251 is an equidigital number, since it uses as much as digits as its factorization.

11100122251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 11100122251 its reverse (15222100111), we get a palindrome (26322222362).

The spelling of 11100122251 in words is "eleven billion, one hundred million, one hundred twenty-two thousand, two hundred fifty-one".