2001212021010 has 32 divisors (see below), whose sum is σ = 4803077002752. Its totient is φ = 533637855360.

The previous prime is 2001212020993. The next prime is 2001212021021. The reversal of 2001212021010 is 101202121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285634 + ... + 2020893.

It is an arithmetic number, because the mean of its divisors is an integer number (150096156336).

Almost surely, 2^{2001212021010} is an apocalyptic number.

2001212021010 is an abundant number, since it is smaller than the sum of its proper divisors (2801864981742).

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

2001212021010 is a wasteful number, since it uses less digits than its factorization.

2001212021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335458.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2001212021010 its reverse (101202121002), we get a palindrome (2102414142012).

The spelling of 2001212021010 in words is "two trillion, one billion, two hundred twelve million, twenty-one thousand, ten".