221201112120222 has 48 divisors (see below), whose sum is σ = 479152240277040. Its totient is φ = 68047486730496.

The previous prime is 221201112120173. The next prime is 221201112120301. The reversal of 221201112120222 is 222021211102122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18269613 + ... + 27860024.

It is an arithmetic number, because the mean of its divisors is an integer number (9982338339105).

Almost surely, 2^{221201112120222} is an apocalyptic number.

221201112120222 is an abundant number, since it is smaller than the sum of its proper divisors (257951128156818).

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

221201112120222 is a wasteful number, since it uses less digits than its factorization.

221201112120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46134397 (or 46134384 counting only the distinct ones).

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

Adding to 221201112120222 its reverse (222021211102122), we get a palindrome (443222323222344).

The spelling of 221201112120222 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty-two".