122220213 has 12 divisors (see below), whose sum is σ = 167489280. Its totient is φ = 79275312.

The previous prime is 122220209. The next prime is 122220223. The reversal of 122220213 is 312022221.

It is a happy number.

It is not a de Polignac number, because 122220213 - 2² = 122220209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122220192 and 122220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10773 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (13957440).

Almost surely, 2^122220213 is an apocalyptic number.

It is an amenable number.

122220213 is a deficient number, since it is larger than the sum of its proper divisors (45269067).

122220213 is an equidigital number, since it uses as much as digits as its factorization.

122220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29836 (or 29799 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 122220213 is about 11055.3250969838. The cubic root of 122220213 is about 496.2657982353.

Adding to 122220213 its reverse (312022221), we get a palindrome (434242434).

The spelling of 122220213 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred thirteen".