121127777242005 has 8 divisors (see below), whose sum is σ = 193804443587232. Its totient is φ = 64601481195728.

The previous prime is 121127777241997. The next prime is 121127777242033. The reversal of 121127777242005 is 500242777721121.

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 121127777242005 - 2³ = 121127777241997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4037592574719 + ... + 4037592574748.

It is an arithmetic number, because the mean of its divisors is an integer number (24225555448404).

Almost surely, 2^{121127777242005} is an apocalyptic number.

121127777242005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121127777242005 is a deficient number, since it is larger than the sum of its proper divisors (72676666345227).

121127777242005 is an equidigital number, since it uses as much as digits as its factorization.

121127777242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075185149475.

The product of its (nonzero) digits is 768320, while the sum is 48.

The spelling of 121127777242005 in words is "one hundred twenty-one trillion, one hundred twenty-seven billion, seven hundred seventy-seven million, two hundred forty-two thousand, five".