122250813 has 8 divisors (see below), whose sum is σ = 165434208. Its totient is φ = 80283984.

The previous prime is 122250811. The next prime is 122250823. The reversal of 122250813 is 318052221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122250813 - 2¹ = 122250811 is a prime.

It is a super-2 number, since 2×122250813² = 29890522558321938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122250811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303906 + ... + 304307.

It is an arithmetic number, because the mean of its divisors is an integer number (20679276).

Almost surely, 2^122250813 is an apocalyptic number.

It is an amenable number.

122250813 is a deficient number, since it is larger than the sum of its proper divisors (43183395).

122250813 is an equidigital number, since it uses as much as digits as its factorization.

122250813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608283.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 122250813 is about 11056.7089588177. The cubic root of 122250813 is about 496.3072110968.

The spelling of 122250813 in words is "one hundred twenty-two million, two hundred fifty thousand, eight hundred thirteen".