221222121000112 has 20 divisors (see below), whose sum is σ = 428618182894600. Its totient is φ = 110610977027328.

The previous prime is 221222121000107. The next prime is 221222121000121. The reversal of 221222121000112 is 211000121222122.

It is a self number, because there is not a number n which added to its sum of digits gives 221222121000112.

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, 20484163 + ... + 29360605.

It is an arithmetic number, because the mean of its divisors is an integer number (21430909144730).

Almost surely, 2^{221222121000112} is an apocalyptic number.

It is an amenable number.

221222121000112 is a deficient number, since it is larger than the sum of its proper divisors (207396061894488).

221222121000112 is a wasteful number, since it uses less digits than its factorization.

221222121000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10434100 (or 10434094 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221222121000112 its reverse (211000121222122), we get a palindrome (432222242222234).

The spelling of 221222121000112 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twelve", and thus it is an aban number.