122001111111222 has 256 divisors, whose sum is σ = 317559933388800. Its totient is φ = 34001855170560.

The previous prime is 122001111111169. The next prime is 122001111111263. The reversal of 122001111111222 is 222111111100221.

It is a happy number.

122001111111222 is a `hidden beast` number, since 1 + 220 + 0 + 1 + 111 + 111 + 222 = 666.

It is a super-2 number, since 2×122001111111222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122001111111195 and 122001111111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1016861697 + ... + 1016981667.

It is an arithmetic number, because the mean of its divisors is an integer number (1240468489800).

Almost surely, 2^{122001111111222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122001111111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158779966694400).

122001111111222 is an abundant number, since it is smaller than the sum of its proper divisors (195558822277578).

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

122001111111222 is a wasteful number, since it uses less digits than its factorization.

122001111111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120468 (or 120462 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122001111111222 its reverse (222111111100221), we get a palindrome (344112222211443).

The spelling of 122001111111222 in words is "one hundred twenty-two trillion, one billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".