100021220983 has 2 divisors, whose sum is σ = 100021220984. Its totient is φ = 100021220982.

The previous prime is 100021220977. The next prime is 100021221017. The reversal of 100021220983 is 389022120001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100021220983 - 2¹⁷ = 100021089911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021220083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010610491 + 50010610492.

It is an arithmetic number, because the mean of its divisors is an integer number (50010610492).

Almost surely, 2^100021220983 is an apocalyptic number.

100021220983 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021220983 is an equidigital number, since it uses as much as digits as its factorization.

100021220983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 100021220983 its reverse (389022120001), we get a palindrome (489043340984).

The spelling of 100021220983 in words is "one hundred billion, twenty-one million, two hundred twenty thousand, nine hundred eighty-three".