20562381022 has 4 divisors (see below), whose sum is σ = 30843571536. Its totient is φ = 10281190510.

The previous prime is 20562381017. The next prime is 20562381029. The reversal of 20562381022 is 22018326502.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20562381029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5140595254 + ... + 5140595257.

It is an arithmetic number, because the mean of its divisors is an integer number (7710892884).

Almost surely, 2^20562381022 is an apocalyptic number.

20562381022 is a deficient number, since it is larger than the sum of its proper divisors (10281190514).

20562381022 is a wasteful number, since it uses less digits than its factorization.

20562381022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281190513.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 20562381022 in words is "twenty billion, five hundred sixty-two million, three hundred eighty-one thousand, twenty-two".