200121220012210 has 64 divisors (see below), whose sum is σ = 412352148425472. Its totient is φ = 68500682401536.

The previous prime is 200121220012201. The next prime is 200121220012213. The reversal of 200121220012210 is 12210022121002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (200121220012213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157204929 + ... + 158472811.

It is an arithmetic number, because the mean of its divisors is an integer number (6443002319148).

Almost surely, 2^{200121220012210} is an apocalyptic number.

200121220012210 is an abundant number, since it is smaller than the sum of its proper divisors (212230928413262).

200121220012210 is a wasteful number, since it uses less digits than its factorization.

200121220012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271587.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200121220012210 its reverse (12210022121002), we get a palindrome (212331242133212).

The spelling of 200121220012210 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred ten".