122211742005 has 32 divisors (see below), whose sum is σ = 222318011520. Its totient is φ = 63663788160.

The previous prime is 122211741943. The next prime is 122211742019. The reversal of 122211742005 is 500247112221.

It is a happy number.

122211742005 is a `hidden beast` number, since 1 + 2 + 221 + 17 + 420 + 0 + 5 = 666.

It is not a de Polignac number, because 122211742005 - 2⁷ = 122211741877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 122211742005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10520616 + ... + 10532225.

It is an arithmetic number, because the mean of its divisors is an integer number (6947437860).

Almost surely, 2^122211742005 is an apocalyptic number.

122211742005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122211742005 is a deficient number, since it is larger than the sum of its proper divisors (100106269515).

122211742005 is a wasteful number, since it uses less digits than its factorization.

122211742005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21052898 (or 21052892 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

Adding to 122211742005 its reverse (500247112221), we get a palindrome (622458854226).

The spelling of 122211742005 in words is "one hundred twenty-two billion, two hundred eleven million, seven hundred forty-two thousand, five".