122776081 has 4 divisors (see below), whose sum is σ = 129238000. Its totient is φ = 116314164.

The previous prime is 122776067. The next prime is 122776097. The reversal of 122776081 is 180677221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122776081 - 2¹¹ = 122774033 is a prime.

It is a super-2 number, since 2×122776081² = 30147932131437122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122776021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230931 + ... + 3230968.

It is an arithmetic number, because the mean of its divisors is an integer number (32309500).

Almost surely, 2^122776081 is an apocalyptic number.

It is an amenable number.

122776081 is a deficient number, since it is larger than the sum of its proper divisors (6461919).

122776081 is an equidigital number, since it uses as much as digits as its factorization.

122776081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461918.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 122776081 is about 11080.4368596188. The cubic root of 122776081 is about 497.0170136424.

The spelling of 122776081 in words is "one hundred twenty-two million, seven hundred seventy-six thousand, eighty-one".