201011212121210 has 16 divisors (see below), whose sum is σ = 361824056589600. Its totient is φ = 80403623788176.

The previous prime is 201011212121191. The next prime is 201011212121257. The reversal of 201011212121210 is 12121212110102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106651640 + ... + 108520019.

It is an arithmetic number, because the mean of its divisors is an integer number (22614003536850).

Almost surely, 2^{201011212121210} is an apocalyptic number.

201011212121210 is a deficient number, since it is larger than the sum of its proper divisors (160812844468390).

201011212121210 is a wasteful number, since it uses less digits than its factorization.

201011212121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215265085.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201011212121210 its reverse (12121212110102), we get a palindrome (213132424231312).

The spelling of 201011212121210 in words is "two hundred one trillion, eleven billion, two hundred twelve million, one hundred twenty-one thousand, two hundred ten".