201012323122 has 24 divisors (see below), whose sum is σ = 336295326276. Its totient is φ = 89575773504.

The previous prime is 201012323063. The next prime is 201012323131. The reversal of 201012323122 is 221323210102.

It can be written as a sum of positive squares in 6 ways, for example, as 115356008881 + 85656314241 = 339641^2 + 292671^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201012323122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4574593 + ... + 4618324.

Almost surely, 2^201012323122 is an apocalyptic number.

201012323122 is a deficient number, since it is larger than the sum of its proper divisors (135283003154).

201012323122 is a wasteful number, since it uses less digits than its factorization.

201012323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192990 (or 9192961 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201012323122 its reverse (221323210102), we get a palindrome (422335533224).

The spelling of 201012323122 in words is "two hundred one billion, twelve million, three hundred twenty-three thousand, one hundred twenty-two".