122210213 has 4 divisors (see below), whose sum is σ = 122988780. Its totient is φ = 121431648.

The previous prime is 122210191. The next prime is 122210227. The reversal of 122210213 is 312012221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312012221 = 1237 ⋅252233.

It can be written as a sum of positive squares in 2 ways, for example, as 68525284 + 53684929 = 8278^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 122210213 - 2¹⁴ = 122193829 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210233) 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, 389048 + ... + 389361.

It is an arithmetic number, because the mean of its divisors is an integer number (30747195).

Almost surely, 2^122210213 is an apocalyptic number.

It is an amenable number.

122210213 is a deficient number, since it is larger than the sum of its proper divisors (778567).

122210213 is an equidigital number, since it uses as much as digits as its factorization.

122210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778566.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122210213 is about 11054.8728169979. The cubic root of 122210213 is about 496.2522631219.

Adding to 122210213 its reverse (312012221), we get a palindrome (434222434).

The spelling of 122210213 in words is "one hundred twenty-two million, two hundred ten thousand, two hundred thirteen".