122419025213 has 4 divisors (see below), whose sum is σ = 126640370940. Its totient is φ = 118197679488.

The previous prime is 122419025189. The next prime is 122419025221. The reversal of 122419025213 is 312520914221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312520914221 = 29 ⋅10776583249.

It can be written as a sum of positive squares in 2 ways, for example, as 91009615684 + 31409409529 = 301678^2 + 177227^2 .

It is a cyclic number.

It is not a de Polignac number, because 122419025213 - 2¹⁸ = 122418763069 is a prime.

It is a super-2 number, since 2×122419025213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122419025213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122419025243) 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, 2110672820 + ... + 2110672877.

It is an arithmetic number, because the mean of its divisors is an integer number (31660092735).

Almost surely, 2^122419025213 is an apocalyptic number.

It is an amenable number.

122419025213 is a deficient number, since it is larger than the sum of its proper divisors (4221345727).

122419025213 is an equidigital number, since it uses as much as digits as its factorization.

122419025213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221345726.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 122419025213 its reverse (312520914221), we get a palindrome (434939939434).

The spelling of 122419025213 in words is "one hundred twenty-two billion, four hundred nineteen million, twenty-five thousand, two hundred thirteen".