100021212120223 has 8 divisors (see below), whose sum is σ = 105286541097600. Its totient is φ = 94755988608408.

The previous prime is 100021212120211. The next prime is 100021212120227. The reversal of 100021212120223 is 322021212120001.

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 100021212120223 - 2²¹ = 100021210023071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100021212120223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021212120227) 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, 24416011 + ... + 28216732.

It is an arithmetic number, because the mean of its divisors is an integer number (13160817637200).

Almost surely, 2^{100021212120223} is an apocalyptic number.

100021212120223 is a deficient number, since it is larger than the sum of its proper divisors (5265328977377).

100021212120223 is a wasteful number, since it uses less digits than its factorization.

100021212120223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52732781.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100021212120223 its reverse (322021212120001), we get a palindrome (422042424240224).

The spelling of 100021212120223 in words is "one hundred trillion, twenty-one billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-three".