122115315149 has 4 divisors (see below), whose sum is σ = 122565925440. Its totient is φ = 121664704860.

The previous prime is 122115315137. The next prime is 122115315163. The reversal of 122115315149 is 941513511221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941513511221 = 5651 ⋅166610071.

It is a cyclic number.

It is not a de Polignac number, because 122115315149 - 2²⁴ = 122098537933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122115315109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225304739 + ... + 225305280.

It is an arithmetic number, because the mean of its divisors is an integer number (30641481360).

Almost surely, 2^122115315149 is an apocalyptic number.

It is an amenable number.

122115315149 is a deficient number, since it is larger than the sum of its proper divisors (450610291).

122115315149 is an equidigital number, since it uses as much as digits as its factorization.

122115315149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450610290.

The product of its digits is 10800, while the sum is 35.

The spelling of 122115315149 in words is "one hundred twenty-two billion, one hundred fifteen million, three hundred fifteen thousand, one hundred forty-nine".