122031213 has 4 divisors (see below), whose sum is σ = 162708288. Its totient is φ = 81354140.

The previous prime is 122031209. The next prime is 122031229. The reversal of 122031213 is 312130221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122031213 - 2² = 122031209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122031192 and 122031201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20338533 + ... + 20338538.

It is an arithmetic number, because the mean of its divisors is an integer number (40677072).

Almost surely, 2^122031213 is an apocalyptic number.

It is an amenable number.

122031213 is a deficient number, since it is larger than the sum of its proper divisors (40677075).

122031213 is an equidigital number, since it uses as much as digits as its factorization.

122031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40677074.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122031213 is about 11046.7738729459. The cubic root of 122031213 is about 496.0098595963.

Adding to 122031213 its reverse (312130221), we get a palindrome (434161434).

The spelling of 122031213 in words is "one hundred twenty-two million, thirty-one thousand, two hundred thirteen".