122005213 has 16 divisors (see below), whose sum is σ = 141157440. Its totient is φ = 104284800.

The previous prime is 122005211. The next prime is 122005229. The reversal of 122005213 is 312500221.

It is a cyclic number.

It is not a de Polignac number, because 122005213 - 2¹ = 122005211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122005211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26503 + ... + 30763.

It is an arithmetic number, because the mean of its divisors is an integer number (8822340).

Almost surely, 2^122005213 is an apocalyptic number.

It is an amenable number.

122005213 is a deficient number, since it is larger than the sum of its proper divisors (19152227).

122005213 is a wasteful number, since it uses less digits than its factorization.

122005213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 122005213 is about 11045.5969960885. The cubic root of 122005213 is about 495.9746304337.

Adding to 122005213 its reverse (312500221), we get a palindrome (434505434).

The spelling of 122005213 in words is "one hundred twenty-two million, five thousand, two hundred thirteen".