2021202012223 has 4 divisors (see below), whose sum is σ = 2039088755808. Its totient is φ = 2003315268640.

The previous prime is 2021202012107. The next prime is 2021202012227. The reversal of 2021202012223 is 3222102021202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021202012223 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 2021202012223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202012227) 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, 8943371623 + ... + 8943371848.

It is an arithmetic number, because the mean of its divisors is an integer number (509772188952).

Almost surely, 2^{2021202012223} is an apocalyptic number.

2021202012223 is a deficient number, since it is larger than the sum of its proper divisors (17886743585).

2021202012223 is a wasteful number, since it uses less digits than its factorization.

2021202012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17886743584.

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

Adding to 2021202012223 its reverse (3222102021202), we get a palindrome (5243304033425).

The spelling of 2021202012223 in words is "two trillion, twenty-one billion, two hundred two million, twelve thousand, two hundred twenty-three".