122412505 has 16 divisors (see below), whose sum is σ = 149151744. Its totient is φ = 96436800.

The previous prime is 122412481. The next prime is 122412517. The reversal of 122412505 is 505214221.

It is not a de Polignac number, because 122412505 - 2¹⁵ = 122379737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112072 + ... + 113158.

It is an arithmetic number, because the mean of its divisors is an integer number (9321984).

Almost surely, 2^122412505 is an apocalyptic number.

It is an amenable number.

122412505 is a deficient number, since it is larger than the sum of its proper divisors (26739239).

122412505 is a wasteful number, since it uses less digits than its factorization.

122412505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 122412505 is about 11064.0184833540. The cubic root of 122412505 is about 496.5259241666.

Adding to 122412505 its reverse (505214221), we get a palindrome (627626726).

The spelling of 122412505 in words is "one hundred twenty-two million, four hundred twelve thousand, five hundred five".