2121200202 has 16 divisors (see below), whose sum is σ = 4628073312. Its totient is φ = 642787920.

The previous prime is 2121200183. The next prime is 2121200209. The reversal of 2121200202 is 2020021212.

It is not an unprimeable number, because it can be changed into a prime (2121200209) 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, 16069633 + ... + 16069764.

It is an arithmetic number, because the mean of its divisors is an integer number (289254582).

Almost surely, 2^2121200202 is an apocalyptic number.

2121200202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121200202 is an abundant number, since it is smaller than the sum of its proper divisors (2506873110).

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

2121200202 is a wasteful number, since it uses less digits than its factorization.

2121200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32139413.

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

The square root of 2121200202 is about 46056.4892496161. The cubic root of 2121200202 is about 1284.8740361116.

Adding to 2121200202 its reverse (2020021212), we get a palindrome (4141221414).

The spelling of 2121200202 in words is "two billion, one hundred twenty-one million, two hundred thousand, two hundred two".