201212211201210 has 96 divisors (see below), whose sum is σ = 570852942940800. Its totient is φ = 48766585910400.

The previous prime is 201212211201193. The next prime is 201212211201241. The reversal of 201212211201210 is 12102112212102.

201212211201210 is a `hidden beast` number, since 20 + 1 + 21 + 2 + 211 + 201 + 210 = 666.

201212211201210 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201212211201210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21292110 + ... + 29253689.

It is an arithmetic number, because the mean of its divisors is an integer number (5946384822300).

Almost surely, 2^{201212211201210} is an apocalyptic number.

201212211201210 is an abundant number, since it is smaller than the sum of its proper divisors (369640731739590).

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

201212211201210 is a wasteful number, since it uses less digits than its factorization.

201212211201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50549844 (or 50549841 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201212211201210 its reverse (12102112212102), we get a palindrome (213314323413312).

The spelling of 201212211201210 in words is "two hundred one trillion, two hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred ten".