221110021003 has 2 divisors, whose sum is σ = 221110021004. Its totient is φ = 221110021002.

The previous prime is 221110021001. The next prime is 221110021021. The reversal of 221110021003 is 300120011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221110021003 - 2¹ = 221110021001 is a prime.

It is a super-2 number, since 2×221110021003² (a number of 23 digits) contains 22 as substring.

Together with 221110021001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (221110021001) 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 as a sum of consecutive naturals, namely, 110555010501 + 110555010502.

It is an arithmetic number, because the mean of its divisors is an integer number (110555010502).

Almost surely, 2^221110021003 is an apocalyptic number.

221110021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

221110021003 is an equidigital number, since it uses as much as digits as its factorization.

221110021003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 221110021003 its reverse (300120011122), we get a palindrome (521230032125).

The spelling of 221110021003 in words is "two hundred twenty-one billion, one hundred ten million, twenty-one thousand, three".