100021122220999 has 8 divisors (see below), whose sum is σ = 114309923368608. Its totient is φ = 85732338423840.

The previous prime is 100021122220961. The next prime is 100021122221003. The reversal of 100021122220999 is 999022221120001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100021122220999 - 2¹⁷ = 100021122089927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021122220909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12238449 + ... + 18703525.

It is an arithmetic number, because the mean of its divisors is an integer number (14288740421076).

Almost surely, 2^{100021122220999} is an apocalyptic number.

100021122220999 is a deficient number, since it is larger than the sum of its proper divisors (14288801147609).

100021122220999 is an equidigital number, since it uses as much as digits as its factorization.

100021122220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675225.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 100021122220999 in words is "one hundred trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-nine".