122012517 has 32 divisors (see below), whose sum is σ = 183343104. Its totient is φ = 71539200.

The previous prime is 122012507. The next prime is 122012533. The reversal of 122012517 is 715210221.

It is not a de Polignac number, because 122012517 - 2¹² = 122008421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122012493 and 122012502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150042 + ... + 150852.

It is an arithmetic number, because the mean of its divisors is an integer number (5729472).

Almost surely, 2^122012517 is an apocalyptic number.

It is an amenable number.

122012517 is a deficient number, since it is larger than the sum of its proper divisors (61330587).

122012517 is a wasteful number, since it uses less digits than its factorization.

122012517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 122012517 is about 11045.9276206211. The cubic root of 122012517 is about 495.9845276239.

Adding to 122012517 its reverse (715210221), we get a palindrome (837222738).

The spelling of 122012517 in words is "one hundred twenty-two million, twelve thousand, five hundred seventeen".