20221021020233 has 4 divisors (see below), whose sum is σ = 22059295658448. Its totient is φ = 18382746382020.

The previous prime is 20221021020227. The next prime is 20221021020247. The reversal of 20221021020233 is 33202012012202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221021020233 - 2¹⁰ = 20221021019209 is a prime.

It is a super-2 number, since 2×20221021020233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221021020203) 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, 919137319091 + ... + 919137319112.

It is an arithmetic number, because the mean of its divisors is an integer number (5514823914612).

Almost surely, 2^{20221021020233} is an apocalyptic number.

It is an amenable number.

20221021020233 is a deficient number, since it is larger than the sum of its proper divisors (1838274638215).

20221021020233 is a wasteful number, since it uses less digits than its factorization.

20221021020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838274638214.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20221021020233 its reverse (33202012012202), we get a palindrome (53423033032435).

The spelling of 20221021020233 in words is "twenty trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, two hundred thirty-three".