122015140145 has 16 divisors (see below), whose sum is σ = 156251731968. Its totient is φ = 91146827520.

The previous prime is 122015140123. The next prime is 122015140223. The reversal of 122015140145 is 541041510221.

It is a happy number.

It is not a de Polignac number, because 122015140145 - 2¹² = 122015136049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5640671 + ... + 5662260.

It is an arithmetic number, because the mean of its divisors is an integer number (9765733248).

Almost surely, 2^122015140145 is an apocalyptic number.

It is an amenable number.

122015140145 is a deficient number, since it is larger than the sum of its proper divisors (34236591823).

122015140145 is a wasteful number, since it uses less digits than its factorization.

122015140145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11303080.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 122015140145 its reverse (541041510221), we get a palindrome (663056650366).

The spelling of 122015140145 in words is "one hundred twenty-two billion, fifteen million, one hundred forty thousand, one hundred forty-five".