2021422243331 has 4 divisors (see below), whose sum is σ = 2059562285712. Its totient is φ = 1983282200952.

The previous prime is 2021422243327. The next prime is 2021422243367. The reversal of 2021422243331 is 1333422241202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021422243331 - 2² = 2021422243327 is a prime.

It is a super-2 number, since 2×2021422243331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021422243294 and 2021422243303.

It is not an unprimeable number, because it can be changed into a prime (2021422203331) 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, 19070021111 + ... + 19070021216.

It is an arithmetic number, because the mean of its divisors is an integer number (514890571428).

Almost surely, 2^{2021422243331} is an apocalyptic number.

2021422243331 is a deficient number, since it is larger than the sum of its proper divisors (38140042381).

2021422243331 is an equidigital number, since it uses as much as digits as its factorization.

2021422243331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38140042380.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2021422243331 its reverse (1333422241202), we get a palindrome (3354844484533).

The spelling of 2021422243331 in words is "two trillion, twenty-one billion, four hundred twenty-two million, two hundred forty-three thousand, three hundred thirty-one".