20422220552245 has 16 divisors (see below), whose sum is σ = 24616736464320. Its totient is φ = 16264461040000.

The previous prime is 20422220552243. The next prime is 20422220552269. The reversal of 20422220552245 is 54225502222402.

It is not a de Polignac number, because 20422220552245 - 2¹ = 20422220552243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422220552243) 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, 1627696 + ... + 6594985.

It is an arithmetic number, because the mean of its divisors is an integer number (1538546029020).

Almost surely, 2^{20422220552245} is an apocalyptic number.

It is an amenable number.

20422220552245 is a deficient number, since it is larger than the sum of its proper divisors (4194515912075).

20422220552245 is a wasteful number, since it uses less digits than its factorization.

20422220552245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224916.

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 20422220552245 its reverse (54225502222402), we get a palindrome (74647722774647).

The spelling of 20422220552245 in words is "twenty trillion, four hundred twenty-two billion, two hundred twenty million, five hundred fifty-two thousand, two hundred forty-five".