11142222101 has 2 divisors, whose sum is σ = 11142222102. Its totient is φ = 11142222100.

The previous prime is 11142222061. The next prime is 11142222103. The reversal of 11142222101 is 10122224111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5756863876 + 5385358225 = 75874^2 + 73385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142222101 is a prime.

It is a super-2 number, since 2×11142222101² (a number of 21 digits) contains 22 as substring.

Together with 11142222103, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11142222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11142222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571111050 + 5571111051.

It is an arithmetic number, because the mean of its divisors is an integer number (5571111051).

Almost surely, 2^11142222101 is an apocalyptic number.

It is an amenable number.

11142222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142222101 is an equidigital number, since it uses as much as digits as its factorization.

11142222101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11142222101 its reverse (10122224111), we get a palindrome (21264446212).

The spelling of 11142222101 in words is "eleven billion, one hundred forty-two million, two hundred twenty-two thousand, one hundred one".