2021222110023 has 28 divisors (see below), whose sum is σ = 3037679896440. Its totient is φ = 1344265257456.

The previous prime is 2021222110021. The next prime is 2021222110027. The reversal of 2021222110023 is 3200112221202.

It is not a de Polignac number, because 2021222110023 - 2¹ = 2021222110021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021222109978 and 2021222110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021222110021) 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 27 ways as a sum of consecutive naturals, for example, 3003136 + ... + 3614037.

It is an arithmetic number, because the mean of its divisors is an integer number (108488567730).

Almost surely, 2^{2021222110023} is an apocalyptic number.

2021222110023 is a deficient number, since it is larger than the sum of its proper divisors (1016457786417).

2021222110023 is an frugal number, since it uses more digits than its factorization.

2021222110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617610 (or 6617595 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2021222110023 its reverse (3200112221202), we get a palindrome (5221334331225).

The spelling of 2021222110023 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred ten thousand, twenty-three".