222201221122122 has 192 divisors, whose sum is σ = 513815250275712. Its totient is φ = 63931598438400.

The previous prime is 222201221122087. The next prime is 222201221122157. The reversal of 222201221122122 is 221221122102222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222201221122087) and next prime (222201221122157).

It is a junction number, because it is equal to n+sod(n) for n = 222201221122092 and 222201221122101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1267019722 + ... + 1267195082.

It is an arithmetic number, because the mean of its divisors is an integer number (2676121095186).

Almost surely, 2^{222201221122122} is an apocalyptic number.

222201221122122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222201221122122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256907625137856).

222201221122122 is an abundant number, since it is smaller than the sum of its proper divisors (291614029153590).

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

222201221122122 is a wasteful number, since it uses less digits than its factorization.

222201221122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176565 (or 176554 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 222201221122122 its reverse (221221122102222), we get a palindrome (443422343224344).

The spelling of 222201221122122 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".