221222011122122 has 8 divisors (see below), whose sum is σ = 331895875766400. Its totient is φ = 110590052533324.

The previous prime is 221222011122089. The next prime is 221222011122191. The reversal of 221222011122122 is 221221110222122.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10476500672 + ... + 10476521787.

It is an arithmetic number, because the mean of its divisors is an integer number (41486984470800).

Almost surely, 2^{221222011122122} is an apocalyptic number.

221222011122122 is a deficient number, since it is larger than the sum of its proper divisors (110673864644278).

221222011122122 is a wasteful number, since it uses less digits than its factorization.

221222011122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20953027740.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 221222011122122 its reverse (221221110222122), we get a palindrome (442443121344244).

The spelling of 221222011122122 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, eleven million, one hundred twenty-two thousand, one hundred twenty-two".