201122010 has 48 divisors (see below), whose sum is σ = 537059016. Its totient is φ = 52182144.

The previous prime is 201121993. The next prime is 201122021. The reversal of 201122010 is 10221102.

It can be written as a sum of positive squares in 4 ways, for example, as 173211921 + 27910089 = 13161^2 + 5283^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201121983 and 201122001.

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 23 ways as a sum of consecutive naturals, for example, 26869 + ... + 33528.

Almost surely, 2^201122010 is an apocalyptic number.

201122010 is an abundant number, since it is smaller than the sum of its proper divisors (335937006).

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

201122010 is a wasteful number, since it uses less digits than its factorization.

201122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60447 (or 60444 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 201122010 is about 14181.7491868951. The cubic root of 201122010 is about 585.8951013374.

Adding to 201122010 its reverse (10221102), we get a palindrome (211343112).

It can be divided in two parts, 20112 and 2010, that added together give a palindrome (22122).

The spelling of 201122010 in words is "two hundred one million, one hundred twenty-two thousand, ten".