221222001121122 has 8 divisors (see below), whose sum is σ = 442444002242256. Its totient is φ = 73740667040372.

The previous prime is 221222001121103. The next prime is 221222001121133. The reversal of 221222001121122 is 221121100222122.

It is a sphenic number, since it is the product of 3 distinct primes.

221222001121122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18435166760088 + ... + 18435166760099.

It is an arithmetic number, because the mean of its divisors is an integer number (55305500280282).

Almost surely, 2^{221222001121122} is an apocalyptic number.

221222001121122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221222001121122 is a wasteful number, since it uses less digits than its factorization.

221222001121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36870333520192.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221222001121122 its reverse (221121100222122), we get a palindrome (442343101343244).

The spelling of 221222001121122 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one million, one hundred twenty-one thousand, one hundred twenty-two".