122072427505 has 32 divisors (see below), whose sum is σ = 170964172800. Its totient is φ = 81943415232.

The previous prime is 122072427437. The next prime is 122072427539. The reversal of 122072427505 is 505724270221.

It is not a de Polignac number, because 122072427505 - 2²¹ = 122070330353 is a prime.

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, 369864 + ... + 617206.

It is an arithmetic number, because the mean of its divisors is an integer number (5342630400).

Almost surely, 2^122072427505 is an apocalyptic number.

It is an amenable number.

122072427505 is a deficient number, since it is larger than the sum of its proper divisors (48891745295).

122072427505 is a wasteful number, since it uses less digits than its factorization.

122072427505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247653.

The product of its (nonzero) digits is 78400, while the sum is 37.

Adding to 122072427505 its reverse (505724270221), we get a palindrome (627796697726).

The spelling of 122072427505 in words is "one hundred twenty-two billion, seventy-two million, four hundred twenty-seven thousand, five hundred five".