111022220149 has 2 divisors, whose sum is σ = 111022220150. Its totient is φ = 111022220148.

The previous prime is 111022220147. The next prime is 111022220291. The reversal of 111022220149 is 941022220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85512380625 + 25509839524 = 292425^2 + 159718^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022220149 - 2¹ = 111022220147 is a prime.

Together with 111022220147, 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 (111022220147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511110074 + 55511110075.

It is an arithmetic number, because the mean of its divisors is an integer number (55511110075).

Almost surely, 2^111022220149 is an apocalyptic number.

It is an amenable number.

111022220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022220149 is an equidigital number, since it uses as much as digits as its factorization.

111022220149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 111022220149 in words is "one hundred eleven billion, twenty-two million, two hundred twenty thousand, one hundred forty-nine".