221110122210203 has 4 divisors (see below), whose sum is σ = 221171867570448. Its totient is φ = 221048376849960.

The previous prime is 221110122210167. The next prime is 221110122210221. The reversal of 221110122210203 is 302012221011122.

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

It is a cyclic number.

It is not a de Polignac number, because 221110122210203 - 2²⁴ = 221110105432987 is a prime.

It is a super-2 number, since 2×221110122210203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221110124210203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30872674751 + ... + 30872681912.

It is an arithmetic number, because the mean of its divisors is an integer number (55292966892612).

Almost surely, 2^{221110122210203} is an apocalyptic number.

221110122210203 is a deficient number, since it is larger than the sum of its proper divisors (61745360245).

221110122210203 is an equidigital number, since it uses as much as digits as its factorization.

221110122210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61745360244.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221110122210203 its reverse (302012221011122), we get a palindrome (523122343221325).

The spelling of 221110122210203 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, two hundred ten thousand, two hundred three".