201121121101010 has 32 divisors (see below), whose sum is σ = 394956162283392. Its totient is φ = 73129876202880.

The previous prime is 201121121100989. The next prime is 201121121101037. The reversal of 201121121101010 is 10101121121102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61869587 + ... + 65039126.

It is an arithmetic number, because the mean of its divisors is an integer number (12342380071356).

Almost surely, 2^{201121121101010} is an apocalyptic number.

201121121101010 is a deficient number, since it is larger than the sum of its proper divisors (193835041182382).

201121121101010 is a wasteful number, since it uses less digits than its factorization.

201121121101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126923138.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201121121101010 its reverse (10101121121102), we get a palindrome (211222242222112).

The spelling of 201121121101010 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred one thousand, ten".