221211201110002 has 16 divisors (see below), whose sum is σ = 351335717253720. Its totient is φ = 104099305736448.

The previous prime is 221211201109949. The next prime is 221211201110021. The reversal of 221211201110002 is 200011102112122.

It can be written as a sum of positive squares in 4 ways, for example, as 182100423702681 + 39110777407321 = 13494459^2 + 6253861^2 .

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, 70556524 + ... + 73625032.

Almost surely, 2^{221211201110002} is an apocalyptic number.

221211201110002 is a deficient number, since it is larger than the sum of its proper divisors (130124516143718).

221211201110002 is a wasteful number, since it uses less digits than its factorization.

221211201110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188845.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221211201110002 its reverse (200011102112122), we get a palindrome (421222303222124).

The spelling of 221211201110002 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred one million, one hundred ten thousand, two".