20321022202 has 8 divisors (see below), whose sum is σ = 32826266676. Its totient is φ = 9378933312.

The previous prime is 20321022193. The next prime is 20321022203. The reversal of 20321022202 is 20222012302.

It can be written as a sum of positive squares in 2 ways, for example, as 17899496521 + 2421525681 = 133789^2 + 49209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20321022203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390788863 + ... + 390788914.

Almost surely, 2^20321022202 is an apocalyptic number.

20321022202 is a deficient number, since it is larger than the sum of its proper divisors (12505244474).

20321022202 is a wasteful number, since it uses less digits than its factorization.

20321022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781577792.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20321022202 its reverse (20222012302), we get a palindrome (40543034504).

The spelling of 20321022202 in words is "twenty billion, three hundred twenty-one million, twenty-two thousand, two hundred two".