201000020121210 has 64 divisors (see below), whose sum is σ = 483165333061632. Its totient is φ = 53515028782656.

The previous prime is 201000020121167. The next prime is 201000020121223. The reversal of 201000020121210 is 12121020000102.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56744407 + ... + 60182453.

It is an arithmetic number, because the mean of its divisors is an integer number (7549458329088).

Almost surely, 2^{201000020121210} is an apocalyptic number.

201000020121210 is an abundant number, since it is smaller than the sum of its proper divisors (282165312940422).

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

201000020121210 is a wasteful number, since it uses less digits than its factorization.

201000020121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441147.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201000020121210 its reverse (12121020000102), we get a palindrome (213121040121312).

The spelling of 201000020121210 in words is "two hundred one trillion, twenty million, one hundred twenty-one thousand, two hundred ten".