221220122222003 has 2 divisors, whose sum is σ = 221220122222004. Its totient is φ = 221220122222002.

The previous prime is 221220122221957. The next prime is 221220122222059. The reversal of 221220122222003 is 300222221022122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221220122222003 - 2²⁴ = 221220105444787 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221220122222003.

It is not a weakly prime, because it can be changed into another prime (221220122222083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110610061111001 + 110610061111002.

It is an arithmetic number, because the mean of its divisors is an integer number (110610061111002).

Almost surely, 2^{221220122222003} is an apocalyptic number.

221220122222003 is a deficient number, since it is larger than the sum of its proper divisors (1).

221220122222003 is an equidigital number, since it uses as much as digits as its factorization.

221220122222003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 221220122222003 its reverse (300222221022122), we get a palindrome (521442343244125).

The spelling of 221220122222003 in words is "two hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, three".