122011200111222 has 96 divisors (see below), whose sum is σ = 278219937681504. Its totient is φ = 38592788774400.

The previous prime is 122011200111211. The next prime is 122011200111239. The reversal of 122011200111222 is 222111002110221.

122011200111222 is a `hidden beast` number, since 1 + 220 + 11 + 200 + 1 + 11 + 222 = 666.

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 = 122011200111195 and 122011200111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78885697 + ... + 80417507.

It is an arithmetic number, because the mean of its divisors is an integer number (2898124350849).

Almost surely, 2^{122011200111222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122011200111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139109968840752).

122011200111222 is an abundant number, since it is smaller than the sum of its proper divisors (156208737570282).

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

122011200111222 is a wasteful number, since it uses less digits than its factorization.

122011200111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534814 (or 1534811 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122011200111222 its reverse (222111002110221), we get a palindrome (344122202221443).

The spelling of 122011200111222 in words is "one hundred twenty-two trillion, eleven billion, two hundred million, one hundred eleven thousand, two hundred twenty-two".