20221221002103 has 192 divisors, whose sum is σ = 35245201904640. Its totient is φ = 11408975677440.

The previous prime is 20221221002027. The next prime is 20221221002261. The reversal of 20221221002103 is 30120012212202.

20221221002103 is a `hidden beast` number, since 20 + 221 + 2 + 210 + 0 + 210 + 3 = 666.

It is not a de Polignac number, because 20221221002103 - 2⁸ = 20221221001847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221221002303) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6824575300 + ... + 6824578262.

It is an arithmetic number, because the mean of its divisors is an integer number (183568759920).

Almost surely, 2^{20221221002103} is an apocalyptic number.

20221221002103 is a deficient number, since it is larger than the sum of its proper divisors (15023980902537).

20221221002103 is a wasteful number, since it uses less digits than its factorization.

20221221002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307 (or 4290 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20221221002103 its reverse (30120012212202), we get a palindrome (50341233214305).

The spelling of 20221221002103 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-one million, two thousand, one hundred three".