2001211122010 has 32 divisors (see below), whose sum is σ = 3604289052672. Its totient is φ = 800015930880.

The previous prime is 2001211121999. The next prime is 2001211122017. The reversal of 2001211122010 is 102211121002.

It is not an unprimeable number, because it can be changed into a prime (2001211122017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236909607 + ... + 236918053.

It is an arithmetic number, because the mean of its divisors is an integer number (112634032896).

Almost surely, 2^{2001211122010} is an apocalyptic number.

2001211122010 is a deficient number, since it is larger than the sum of its proper divisors (1603077930662).

2001211122010 is a wasteful number, since it uses less digits than its factorization.

2001211122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518.

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

Adding to 2001211122010 its reverse (102211121002), we get a palindrome (2103422243012).

The spelling of 2001211122010 in words is "two trillion, one billion, two hundred eleven million, one hundred twenty-two thousand, ten".