2021022221023 has 12 divisors (see below), whose sum is σ = 2241820875168. Its totient is φ = 1820057528640.

The previous prime is 2021022221021. The next prime is 2021022221047. The reversal of 2021022221023 is 3201222201202.

It is not a de Polignac number, because 2021022221023 - 2¹ = 2021022221021 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 (2021022221021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145831015 + ... + 145844872.

It is an arithmetic number, because the mean of its divisors is an integer number (186818406264).

Almost surely, 2^{2021022221023} is an apocalyptic number.

2021022221023 is a deficient number, since it is larger than the sum of its proper divisors (220798654145).

2021022221023 is a wasteful number, since it uses less digits than its factorization.

2021022221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291675954 (or 291675941 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2021022221023 its reverse (3201222201202), we get a palindrome (5222244422225).

The spelling of 2021022221023 in words is "two trillion, twenty-one billion, twenty-two million, two hundred twenty-one thousand, twenty-three".