211121201010 has 32 divisors (see below), whose sum is σ = 507268700352. Its totient is φ = 56234784960.

The previous prime is 211121200993. The next prime is 211121201017. The reversal of 211121201010 is 10102121112.

It is not an unprimeable number, because it can be changed into a prime (211121201017) 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 15 ways as a sum of consecutive naturals, for example, 3985876 + ... + 4038495.

It is an arithmetic number, because the mean of its divisors is an integer number (15852146886).

Almost surely, 2^211121201010 is an apocalyptic number.

211121201010 is an abundant number, since it is smaller than the sum of its proper divisors (296147499342).

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

211121201010 is a wasteful number, since it uses less digits than its factorization.

211121201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025258.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211121201010 its reverse (10102121112), we get a palindrome (221223322122).

The spelling of 211121201010 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred one thousand, ten".