2221123021023 has 4 divisors (see below), whose sum is σ = 2961497361368. Its totient is φ = 1480748680680.

The previous prime is 2221123021021. The next prime is 2221123021057. The reversal of 2221123021023 is 3201203211222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2221123021023 - 2¹ = 2221123021021 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 (2221123021021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370187170168 + ... + 370187170173.

It is an arithmetic number, because the mean of its divisors is an integer number (740374340342).

Almost surely, 2^{2221123021023} is an apocalyptic number.

2221123021023 is a deficient number, since it is larger than the sum of its proper divisors (740374340345).

2221123021023 is an equidigital number, since it uses as much as digits as its factorization.

2221123021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740374340344.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2221123021023 its reverse (3201203211222), we get a palindrome (5422326232245).

The spelling of 2221123021023 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, twenty-one thousand, twenty-three".