221020222122122 has 8 divisors (see below), whose sum is σ = 331536289377216. Its totient is φ = 110508125663052.

The previous prime is 221020222122107. The next prime is 221020222122151. The reversal of 221020222122122 is 221221222020122.

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

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, 992559848 + ... + 992782499.

It is an arithmetic number, because the mean of its divisors is an integer number (41442036172152).

Almost surely, 2^{221020222122122} is an apocalyptic number.

221020222122122 is a deficient number, since it is larger than the sum of its proper divisors (110516067255094).

221020222122122 is a wasteful number, since it uses less digits than its factorization.

221020222122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985398012.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221020222122122 its reverse (221221222020122), we get a palindrome (442241444142244).

The spelling of 221020222122122 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".