20022002240243 has 16 divisors (see below), whose sum is σ = 20498085364032. Its totient is φ = 19551389760000.

The previous prime is 20022002240239. The next prime is 20022002240291. The reversal of 20022002240243 is 34204220022002.

It is a cyclic number.

It is not a de Polignac number, because 20022002240243 - 2² = 20022002240239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022002245243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253304138 + ... + 253383168.

It is an arithmetic number, because the mean of its divisors is an integer number (1281130335252).

Almost surely, 2^{20022002240243} is an apocalyptic number.

20022002240243 is a deficient number, since it is larger than the sum of its proper divisors (476083123789).

20022002240243 is a wasteful number, since it uses less digits than its factorization.

20022002240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113566.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20022002240243 its reverse (34204220022002), we get a palindrome (54226222262245).

The spelling of 20022002240243 in words is "twenty trillion, twenty-two billion, two million, two hundred forty thousand, two hundred forty-three".