122700072155 has 8 divisors (see below), whose sum is σ = 147245513712. Its totient is φ = 98156439648.

The previous prime is 122700072139. The next prime is 122700072191. The reversal of 122700072155 is 551270007221.

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 122700072155 - 2⁴ = 122700072139 is a prime.

It is a Duffinian 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, 298277 + ... + 578246.

It is an arithmetic number, because the mean of its divisors is an integer number (18405689214).

Almost surely, 2^122700072155 is an apocalyptic number.

122700072155 is a deficient number, since it is larger than the sum of its proper divisors (24545441557).

122700072155 is an equidigital number, since it uses as much as digits as its factorization.

122700072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904525.

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 122700072155 its reverse (551270007221), we get a palindrome (673970079376).

The spelling of 122700072155 in words is "one hundred twenty-two billion, seven hundred million, seventy-two thousand, one hundred fifty-five".