221111112020003 has 2 divisors, whose sum is σ = 221111112020004. Its totient is φ = 221111112020002.

The previous prime is 221111112019997. The next prime is 221111112020053. The reversal of 221111112020003 is 300020211111122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221111112020003 - 2¹⁸ = 221111111757859 is a prime.

It is not a weakly prime, because it can be changed into another prime (221111112020053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555556010001 + 110555556010002.

It is an arithmetic number, because the mean of its divisors is an integer number (110555556010002).

Almost surely, 2^{221111112020003} is an apocalyptic number.

221111112020003 is a deficient number, since it is larger than the sum of its proper divisors (1).

221111112020003 is an equidigital number, since it uses as much as digits as its factorization.

221111112020003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 221111112020003 its reverse (300020211111122), we get a palindrome (521131323131125).

The spelling of 221111112020003 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twelve million, twenty thousand, three".