11101214261 has 2 divisors, whose sum is σ = 11101214262. Its totient is φ = 11101214260.

The previous prime is 11101214233. The next prime is 11101214287. The reversal of 11101214261 is 16241210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10887879025 + 213335236 = 104345^2 + 14606^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101214261 - 2²² = 11097019957 is a prime.

It is a super-2 number, since 2×11101214261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101213261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550607130 + 5550607131.

It is an arithmetic number, because the mean of its divisors is an integer number (5550607131).

Almost surely, 2^11101214261 is an apocalyptic number.

It is an amenable number.

11101214261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101214261 is an equidigital number, since it uses as much as digits as its factorization.

11101214261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11101214261 its reverse (16241210111), we get a palindrome (27342424372).

The spelling of 11101214261 in words is "eleven billion, one hundred one million, two hundred fourteen thousand, two hundred sixty-one".