20222440140243 has 32 divisors (see below), whose sum is σ = 30243072513024. Its totient is φ = 11912974560000.

The previous prime is 20222440140223. The next prime is 20222440140299. The reversal of 20222440140243 is 34204104422202.

It is a happy number.

It is not a de Polignac number, because 20222440140243 - 2⁵ = 20222440140211 is a prime.

It is a super-2 number, since 2×20222440140243² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20222440140243.

It is not an unprimeable number, because it can be changed into a prime (20222440140223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27209668 + ... + 27942993.

It is an arithmetic number, because the mean of its divisors is an integer number (945096016032).

Almost surely, 2^{20222440140243} is an apocalyptic number.

20222440140243 is a deficient number, since it is larger than the sum of its proper divisors (10020632372781).

20222440140243 is a wasteful number, since it uses less digits than its factorization.

20222440140243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55152987.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 20222440140243 its reverse (34204104422202), we get a palindrome (54426544562445).

The spelling of 20222440140243 in words is "twenty trillion, two hundred twenty-two billion, four hundred forty million, one hundred forty thousand, two hundred forty-three".