2221121021003 has 2 divisors, whose sum is σ = 2221121021004. Its totient is φ = 2221121021002.

The previous prime is 2221121020997. The next prime is 2221121021039. The reversal of 2221121021003 is 3001201211222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221121021003 - 2²⁰ = 2221119972427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221121029003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110560510501 + 1110560510502.

It is an arithmetic number, because the mean of its divisors is an integer number (1110560510502).

Almost surely, 2^{2221121021003} is an apocalyptic number.

2221121021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221121021003 is an equidigital number, since it uses as much as digits as its factorization.

2221121021003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221121021003 its reverse (3001201211222), we get a palindrome (5222322232225).

The spelling of 2221121021003 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, three".