200121222010 has 16 divisors (see below), whose sum is σ = 360344333736. Its totient is φ = 80020459008.

The previous prime is 200121221987. The next prime is 200121222011. The reversal of 200121222010 is 10222121002.

It is a happy number.

200121222010 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 4 ways, for example, as 152489469001 + 47631753009 = 390499^2 + 218247^2 .

It is not an unprimeable number, because it can be changed into a prime (200121222011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3473727 + ... + 3530866.

Almost surely, 2^200121222010 is an apocalyptic number.

200121222010 is a deficient number, since it is larger than the sum of its proper divisors (160223111726).

200121222010 is a wasteful number, since it uses less digits than its factorization.

200121222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007457.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200121222010 its reverse (10222121002), we get a palindrome (210343343012).

The spelling of 200121222010 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, ten".