122013636 has 12 divisors (see below), whose sum is σ = 284698512. Its totient is φ = 40671208.

The previous prime is 122013631. The next prime is 122013637. The reversal of 122013636 is 636310221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (122013631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5083890 + ... + 5083913.

It is an arithmetic number, because the mean of its divisors is an integer number (23724876).

Almost surely, 2^122013636 is an apocalyptic number.

It is an amenable number.

122013636 is an abundant number, since it is smaller than the sum of its proper divisors (162684876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122013636 is a wasteful number, since it uses less digits than its factorization.

122013636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167810 (or 10167808 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 122013636 is about 11045.9782726565. The cubic root of 122013636 is about 495.9860438754.

Adding to 122013636 its reverse (636310221), we get a palindrome (758323857).

The spelling of 122013636 in words is "one hundred twenty-two million, thirteen thousand, six hundred thirty-six".