20221342245 has 24 divisors (see below), whose sum is σ = 37746506616. Its totient is φ = 9955122048.

The previous prime is 20221342243. The next prime is 20221342301. The reversal of 20221342245 is 54224312202.

20221342245 is a `hidden beast` number, since 20 + 2 + 213 + 422 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 480530241 + 19740812004 = 21921^2 + 140502^2 .

It is not a de Polignac number, because 20221342245 - 2¹ = 20221342243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221342243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17282614 + ... + 17283783.

It is an arithmetic number, because the mean of its divisors is an integer number (1572771109).

Almost surely, 2^20221342245 is an apocalyptic number.

It is an amenable number.

20221342245 is a deficient number, since it is larger than the sum of its proper divisors (17525164371).

20221342245 is a wasteful number, since it uses less digits than its factorization.

20221342245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34566421 (or 34566418 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20221342245 its reverse (54224312202), we get a palindrome (74445654447).

The spelling of 20221342245 in words is "twenty billion, two hundred twenty-one million, three hundred forty-two thousand, two hundred forty-five".