20000122192 has 80 divisors (see below), whose sum is σ = 42640128000. Its totient is φ = 9046517760.

The previous prime is 20000122183. The next prime is 20000122201. The reversal of 20000122192 is 29122100002.

It is an interprime number because it is at equal distance from previous prime (20000122183) and next prime (20000122201).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248409 + ... + 1264327.

It is an arithmetic number, because the mean of its divisors is an integer number (533001600).

Almost surely, 2^20000122192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000122192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21320064000).

20000122192 is an abundant number, since it is smaller than the sum of its proper divisors (22640005808).

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

20000122192 is a wasteful number, since it uses less digits than its factorization.

20000122192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124 (or 16118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20000122192 its reverse (29122100002), we get a palindrome (49122222194).

The spelling of 20000122192 in words is "twenty billion, one hundred twenty-two thousand, one hundred ninety-two".