122157753077 has 8 divisors (see below), whose sum is σ = 133803624600. Its totient is φ = 111007450624.

The previous prime is 122157753073. The next prime is 122157753089. The reversal of 122157753077 is 770357751221.

It can be written as a sum of positive squares in 4 ways, for example, as 27092830801 + 95064922276 = 164599^2 + 308326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122157753077 - 2² = 122157753073 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 (122157753073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123891752 + ... + 123892737.

It is an arithmetic number, because the mean of its divisors is an integer number (16725453075).

Almost surely, 2^122157753077 is an apocalyptic number.

122157753077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

122157753077 is a deficient number, since it is larger than the sum of its proper divisors (11645871523).

122157753077 is a wasteful number, since it uses less digits than its factorization.

122157753077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247784535.

The product of its (nonzero) digits is 720300, while the sum is 47.

The spelling of 122157753077 in words is "one hundred twenty-two billion, one hundred fifty-seven million, seven hundred fifty-three thousand, seventy-seven".