20322215250 has 32 divisors (see below), whose sum is σ = 50724251136. Its totient is φ = 5419257200.

The previous prime is 20322215143. The next prime is 20322215299. The reversal of 20322215250 is 5251222302.

It is a super-3 number, since 3×20322215250³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20322215250.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 13547394 + ... + 13548893.

It is an arithmetic number, because the mean of its divisors is an integer number (1585132848).

Almost surely, 2^20322215250 is an apocalyptic number.

20322215250 is an abundant number, since it is smaller than the sum of its proper divisors (30402035886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20322215250 is a wasteful number, since it uses less digits than its factorization.

20322215250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27096307 (or 27096297 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20322215250 its reverse (5251222302), we get a palindrome (25573437552).

The spelling of 20322215250 in words is "twenty billion, three hundred twenty-two million, two hundred fifteen thousand, two hundred fifty".