122240305 has 16 divisors (see below), whose sum is σ = 161201664. Its totient is φ = 88247680.

The previous prime is 122240303. The next prime is 122240309. The reversal of 122240305 is 503042221.

It is not a de Polignac number, because 122240305 - 2¹ = 122240303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122240303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (10075104).

Almost surely, 2^122240305 is an apocalyptic number.

It is an amenable number.

122240305 is a deficient number, since it is larger than the sum of its proper divisors (38961359).

122240305 is a wasteful number, since it uses less digits than its factorization.

122240305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16376.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 122240305 is about 11056.2337620005. The cubic root of 122240305 is about 496.2929907534.

Adding to 122240305 its reverse (503042221), we get a palindrome (625282526).

The spelling of 122240305 in words is "one hundred twenty-two million, two hundred forty thousand, three hundred five".