200121020202 has 32 divisors (see below), whose sum is σ = 410333349888. Its totient is φ = 65031056496.

The previous prime is 200121020201. The next prime is 200121020237. The reversal of 200121020202 is 202020121002.

It is not an unprimeable number, because it can be changed into a prime (200121020201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606618 + ... + 876485.

It is an arithmetic number, because the mean of its divisors is an integer number (12822917184).

Almost surely, 2^200121020202 is an apocalyptic number.

200121020202 is an abundant number, since it is smaller than the sum of its proper divisors (210212329686).

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

200121020202 is a wasteful number, since it uses less digits than its factorization.

200121020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483674.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200121020202 its reverse (202020121002), we get a palindrome (402141141204).

The spelling of 200121020202 in words is "two hundred billion, one hundred twenty-one million, twenty thousand, two hundred two".