220121011003 has 2 divisors, whose sum is σ = 220121011004. Its totient is φ = 220121011002.

The previous prime is 220121010983. The next prime is 220121011069. The reversal of 220121011003 is 300110121022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220121011003 - 2²⁵ = 220087456571 is a prime.

It is not a weakly prime, because it can be changed into another prime (220121015003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060505501 + 110060505502.

It is an arithmetic number, because the mean of its divisors is an integer number (110060505502).

Almost surely, 2^220121011003 is an apocalyptic number.

220121011003 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121011003 is an equidigital number, since it uses as much as digits as its factorization.

220121011003 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 220121011003 its reverse (300110121022), we get a palindrome (520231132025).

The spelling of 220121011003 in words is "two hundred twenty billion, one hundred twenty-one million, eleven thousand, three".