2021012222223 has 8 divisors (see below), whose sum is σ = 2694706145200. Its totient is φ = 1347329890368.

The previous prime is 2021012222221. The next prime is 2021012222227. The reversal of 2021012222223 is 3222222101202.

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

It is not a de Polignac number, because 2021012222223 - 2¹ = 2021012222221 is a prime.

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 2021012222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021012222221) 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, 2482438 + ... + 3194451.

It is an arithmetic number, because the mean of its divisors is an integer number (336838268150).

Almost surely, 2^{2021012222223} is an apocalyptic number.

2021012222223 is a deficient number, since it is larger than the sum of its proper divisors (673693922977).

2021012222223 is a wasteful number, since it uses less digits than its factorization.

2021012222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795561.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2021012222223 its reverse (3222222101202), we get a palindrome (5243234323425).

The spelling of 2021012222223 in words is "two trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred twenty-three".