122220022213 has 4 divisors (see below), whose sum is σ = 123480022540. Its totient is φ = 120960021888.

The previous prime is 122220022159. The next prime is 122220022237. The reversal of 122220022213 is 312220022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312220022221 = 251 ⋅1243904471.

It can be written as a sum of positive squares in 2 ways, for example, as 94097403009 + 28122619204 = 306753^2 + 167698^2 .

It is a cyclic number.

It is not a de Polignac number, because 122220022213 - 2²⁹ = 121683151301 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 (122220023213) 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, 630000018 + ... + 630000211.

It is an arithmetic number, because the mean of its divisors is an integer number (30870005635).

Almost surely, 2^122220022213 is an apocalyptic number.

It is an amenable number.

122220022213 is a deficient number, since it is larger than the sum of its proper divisors (1260000327).

122220022213 is an equidigital number, since it uses as much as digits as its factorization.

122220022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260000326.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122220022213 its reverse (312220022221), we get a palindrome (434440044434).

The spelling of 122220022213 in words is "one hundred twenty-two billion, two hundred twenty million, twenty-two thousand, two hundred thirteen".