122081407 has 4 divisors (see below), whose sum is σ = 139521616. Its totient is φ = 104641200.

The previous prime is 122081383. The next prime is 122081411. The reversal of 122081407 is 704180221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122081407 - 2¹¹ = 122079359 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 (122081107) 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, 8720094 + ... + 8720107.

It is an arithmetic number, because the mean of its divisors is an integer number (34880404).

Almost surely, 2^122081407 is an apocalyptic number.

122081407 is a deficient number, since it is larger than the sum of its proper divisors (17440209).

122081407 is an equidigital number, since it uses as much as digits as its factorization.

122081407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17440208.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 122081407 is about 11049.0455243881. The cubic root of 122081407 is about 496.0778566974.

The spelling of 122081407 in words is "one hundred twenty-two million, eighty-one thousand, four hundred seven".