2001212021110 has 16 divisors (see below), whose sum is σ = 3602278864656. Its totient is φ = 800463202528.

The previous prime is 2001212021021. The next prime is 2001212021147. The reversal of 2001212021110 is 111202121002.

It is a congruent number.

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, 2309017 + ... + 3055156.

It is an arithmetic number, because the mean of its divisors is an integer number (225142429041).

Almost surely, 2^{2001212021110} is an apocalyptic number.

2001212021110 is a deficient number, since it is larger than the sum of its proper divisors (1601066843546).

2001212021110 is a wasteful number, since it uses less digits than its factorization.

2001212021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401487.

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

Adding to 2001212021110 its reverse (111202121002), we get a palindrome (2112414142112).

The spelling of 2001212021110 in words is "two trillion, one billion, two hundred twelve million, twenty-one thousand, one hundred ten".