2121010000223 has 8 divisors (see below), whose sum is σ = 2126526981168. Its totient is φ = 2115493896384.

The previous prime is 2121010000141. The next prime is 2121010000267. The reversal of 2121010000223 is 3220000101212.

It is a happy number.

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 2121010000223 - 2¹⁸ = 2121009738079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121010000198 and 2121010000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121010006223) 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 in 7 ways as a sum of consecutive naturals, for example, 4770740 + ... + 5196342.

It is an arithmetic number, because the mean of its divisors is an integer number (265815872646).

Almost surely, 2^{2121010000223} is an apocalyptic number.

2121010000223 is a deficient number, since it is larger than the sum of its proper divisors (5516980945).

2121010000223 is a wasteful number, since it uses less digits than its factorization.

2121010000223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438553.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2121010000223 its reverse (3220000101212), we get a palindrome (5341010101435).

The spelling of 2121010000223 in words is "two trillion, one hundred twenty-one billion, ten million, two hundred twenty-three", and thus it is an aban number.