201210121210 has 16 divisors (see below), whose sum is σ = 413917963776. Its totient is φ = 68986327248.

The previous prime is 201210121169. The next prime is 201210121213. The reversal of 201210121210 is 12121012102.

It is not an unprimeable number, because it can be changed into a prime (201210121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437215082 + ... + 1437215221.

It is an arithmetic number, because the mean of its divisors is an integer number (25869872736).

Almost surely, 2^201210121210 is an apocalyptic number.

201210121210 is an abundant number, since it is smaller than the sum of its proper divisors (212707842566).

201210121210 is a wasteful number, since it uses less digits than its factorization.

201210121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874430317.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201210121210 its reverse (12121012102), we get a palindrome (213331133312).

The spelling of 201210121210 in words is "two hundred one billion, two hundred ten million, one hundred twenty-one thousand, two hundred ten".