122155370605 has 4 divisors (see below), whose sum is σ = 146586444732. Its totient is φ = 97724296480.

The previous prime is 122155370581. The next prime is 122155370677. The reversal of 122155370605 is 506073551221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92052773604 + 30102597001 = 303402^2 + 173501^2 .

It is not a de Polignac number, because 122155370605 - 2²³ = 122146981997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12215537056 + ... + 12215537065.

It is an arithmetic number, because the mean of its divisors is an integer number (36646611183).

Almost surely, 2^122155370605 is an apocalyptic number.

It is an amenable number.

122155370605 is a deficient number, since it is larger than the sum of its proper divisors (24431074127).

122155370605 is an equidigital number, since it uses as much as digits as its factorization.

122155370605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24431074126.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 122155370605 in words is "one hundred twenty-two billion, one hundred fifty-five million, three hundred seventy thousand, six hundred five".