122111212212222 has 32 divisors (see below), whose sum is σ = 244321360646400. Its totient is φ = 40687251029568.

The previous prime is 122111212212161. The next prime is 122111212212307. The reversal of 122111212212222 is 222212212111221.

It is a super-2 number, since 2×122111212212222² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 122111212212192 and 122111212212201.

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, 165134029 + ... + 165871847.

It is an arithmetic number, because the mean of its divisors is an integer number (7635042520200).

Almost surely, 2^{122111212212222} is an apocalyptic number.

122111212212222 is an abundant number, since it is smaller than the sum of its proper divisors (122210148434178).

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

122111212212222 is a wasteful number, since it uses less digits than its factorization.

122111212212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748960.

The product of its digits is 512, while the sum is 24.

Adding to 122111212212222 its reverse (222212212111221), we get a palindrome (344323424323443).

The spelling of 122111212212222 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-two".