200121220230 has 32 divisors (see below), whose sum is σ = 481332807648. Its totient is φ = 53249894400.

The previous prime is 200121220193. The next prime is 200121220231. The reversal of 200121220230 is 32022121002.

It is a happy number.

200121220230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×200121220230² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121220231) 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 15 ways as a sum of consecutive naturals, for example, 7221211 + ... + 7248870.

It is an arithmetic number, because the mean of its divisors is an integer number (15041650239).

Almost surely, 2^200121220230 is an apocalyptic number.

200121220230 is an abundant number, since it is smaller than the sum of its proper divisors (281211587418).

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

200121220230 is a wasteful number, since it uses less digits than its factorization.

200121220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470552.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200121220230 its reverse (32022121002), we get a palindrome (232143341232).

The spelling of 200121220230 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty thousand, two hundred thirty".