122211320 has 64 divisors (see below), whose sum is σ = 342835200. Its totient is φ = 38090880.

The previous prime is 122211319. The next prime is 122211347. The reversal of 122211320 is 23112221.

It is a happy number.

It is a super-2 number, since 2×122211320² = 29871213472284800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 122211295 and 122211304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16760 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^122211320 is an apocalyptic number.

122211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211320 is an abundant number, since it is smaller than the sum of its proper divisors (220623880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122211320 is a wasteful number, since it uses less digits than its factorization.

122211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39708 (or 39704 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122211320 is about 11054.9228853032. The cubic root of 122211320 is about 496.2537614953.

Adding to 122211320 its reverse (23112221), we get a palindrome (145323541).

Subtracting from 122211320 its reverse (23112221), we obtain a palindrome (99099099).

The spelling of 122211320 in words is "one hundred twenty-two million, two hundred eleven thousand, three hundred twenty".