122011213 has 2 divisors, whose sum is σ = 122011214. Its totient is φ = 122011212.

The previous prime is 122011181. The next prime is 122011229. The reversal of 122011213 is 312110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 22071204 = 9997^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 122011213 - 2⁵ = 122011181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122011193 and 122011202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005606 + 61005607.

It is an arithmetic number, because the mean of its divisors is an integer number (61005607).

Almost surely, 2^122011213 is an apocalyptic number.

It is an amenable number.

122011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011213 is an equidigital number, since it uses as much as digits as its factorization.

122011213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 122011213 is about 11045.8685941849. The cubic root of 122011213 is about 495.9827606846.

Adding to 122011213 its reverse (312110221), we get a palindrome (434121434).

The spelling of 122011213 in words is "one hundred twenty-two million, eleven thousand, two hundred thirteen".