221002100012222 has 16 divisors (see below), whose sum is σ = 336956133148944. Its totient is φ = 108683587944000.

The previous prime is 221002100012179. The next prime is 221002100012233. The reversal of 221002100012222 is 222210001200122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221002100012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47514479 + ... + 51957962.

It is an arithmetic number, because the mean of its divisors is an integer number (21059758321809).

Almost surely, 2^{221002100012222} is an apocalyptic number.

221002100012222 is a deficient number, since it is larger than the sum of its proper divisors (115954033136722).

221002100012222 is a wasteful number, since it uses less digits than its factorization.

221002100012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99490715.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221002100012222 its reverse (222210001200122), we get a palindrome (443212101212344).

The spelling of 221002100012222 in words is "two hundred twenty-one trillion, two billion, one hundred million, twelve thousand, two hundred twenty-two".