111222002210201 has 4 divisors (see below), whose sum is σ = 111222023370804. Its totient is φ = 111221981049600.

The previous prime is 111222002210197. The next prime is 111222002210251. The reversal of 111222002210201 is 102012200222111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28356956265625 + 82865045944576 = 5325125^2 + 9103024^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222002210201 - 2² = 111222002210197 is a prime.

It is a super-2 number, since 2×111222002210201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111222002210201.

It is not an unprimeable number, because it can be changed into a prime (111222002210251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016681 + ... + 15445961.

It is an arithmetic number, because the mean of its divisors is an integer number (27805505842701).

Almost surely, 2^{111222002210201} is an apocalyptic number.

It is an amenable number.

111222002210201 is a deficient number, since it is larger than the sum of its proper divisors (21160603).

111222002210201 is an equidigital number, since it uses as much as digits as its factorization.

111222002210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21160602.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111222002210201 its reverse (102012200222111), we get a palindrome (213234202432312).

The spelling of 111222002210201 in words is "one hundred eleven trillion, two hundred twenty-two billion, two million, two hundred ten thousand, two hundred one".