122921841 has 12 divisors (see below), whose sum is σ = 190654512. Its totient is φ = 70240968.

The previous prime is 122921831. The next prime is 122921857. The reversal of 122921841 is 148129221.

It is a happy number.

It is not a de Polignac number, because 122921841 - 2⁹ = 122921329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122921799 and 122921808.

It is not an unprimeable number, because it can be changed into a prime (122921831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417955 + ... + 418248.

It is an arithmetic number, because the mean of its divisors is an integer number (15887876).

Almost surely, 2^122921841 is an apocalyptic number.

It is an amenable number.

122921841 is a deficient number, since it is larger than the sum of its proper divisors (67732671).

122921841 is an equidigital number, since it uses as much as digits as its factorization.

122921841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836220 (or 836213 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 122921841 is about 11087.0122666118. The cubic root of 122921841 is about 497.2136223770.

The spelling of 122921841 in words is "one hundred twenty-two million, nine hundred twenty-one thousand, eight hundred forty-one".