221201100010222 has 16 divisors (see below), whose sum is σ = 351323601184080. Its totient is φ = 104093388765568.

The previous prime is 221201100010201. The next prime is 221201100010229. The reversal of 221201100010222 is 222010001102122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221201100010196 and 221201100010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201100010229) 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, 36070072 + ... + 41754667.

It is an arithmetic number, because the mean of its divisors is an integer number (21957725074005).

Almost surely, 2^{221201100010222} is an apocalyptic number.

221201100010222 is a deficient number, since it is larger than the sum of its proper divisors (130122501173858).

221201100010222 is a wasteful number, since it uses less digits than its factorization.

221201100010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77908355.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221201100010222 its reverse (222010001102122), we get a palindrome (443211101112344).

The spelling of 221201100010222 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred million, ten thousand, two hundred twenty-two".