221021222202112 has 72 divisors (see below), whose sum is σ = 441364539924000. Its totient is φ = 110464166141952.

The previous prime is 221021222202107. The next prime is 221021222202119. The reversal of 221021222202112 is 211202222120122.

It is not an unprimeable number, because it can be changed into a prime (221021222202119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7144220308 + ... + 7144251244.

It is an arithmetic number, because the mean of its divisors is an integer number (6130063054500).

Almost surely, 2^{221021222202112} is an apocalyptic number.

It is an amenable number.

221021222202112 is a deficient number, since it is larger than the sum of its proper divisors (220343317721888).

221021222202112 is an equidigital number, since it uses as much as digits as its factorization.

221021222202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41781 (or 41767 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221021222202112 its reverse (211202222120122), we get a palindrome (432223444322234).

The spelling of 221021222202112 in words is "two hundred twenty-one trillion, twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred twelve".