201122423144 has 16 divisors (see below), whose sum is σ = 383286586020. Its totient is φ = 98912666880.

The previous prime is 201122423063. The next prime is 201122423197. The reversal of 201122423144 is 441324221102.

201122423144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200938820644 + 183602500 = 448262^2 + 13550^2 .

It is an unprimeable number.

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, 206067569 + ... + 206068544.

Almost surely, 2^201122423144 is an apocalyptic number.

It is an amenable number.

201122423144 is a deficient number, since it is larger than the sum of its proper divisors (182164162876).

201122423144 is a wasteful number, since it uses less digits than its factorization.

201122423144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412136180 (or 412136176 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 201122423144 its reverse (441324221102), we get a palindrome (642446644246).

The spelling of 201122423144 in words is "two hundred one billion, one hundred twenty-two million, four hundred twenty-three thousand, one hundred forty-four".