10205155422 has 144 divisors (see below), whose sum is σ = 28965441024. Its totient is φ = 2565108000.

The previous prime is 10205155397. The next prime is 10205155427. The reversal of 10205155422 is 22455150201.

10205155422 is a `hidden beast` number, since 102 + 0 + 5 + 1 + 554 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10205155427) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 283797 + ... + 317727.

It is an arithmetic number, because the mean of its divisors is an integer number (201148896).

Almost surely, 2^10205155422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10205155422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14482720512).

10205155422 is an abundant number, since it is smaller than the sum of its proper divisors (18760285602).

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

10205155422 is a wasteful number, since it uses less digits than its factorization.

10205155422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33995 (or 33985 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 10205155422 in words is "ten billion, two hundred five million, one hundred fifty-five thousand, four hundred twenty-two".