2001212210031 has 8 divisors (see below), whose sum is σ = 2668817371440. Its totient is φ = 1333874260992.

The previous prime is 2001212210017. The next prime is 2001212210059. The reversal of 2001212210031 is 1300122121002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001212210031 - 2¹⁹ = 2001211685743 is a prime.

It is a super-2 number, since 2×2001212210031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001219210031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66785616 + ... + 66815573.

It is an arithmetic number, because the mean of its divisors is an integer number (333602171430).

Almost surely, 2^{2001212210031} is an apocalyptic number.

2001212210031 is a deficient number, since it is larger than the sum of its proper divisors (667605161409).

2001212210031 is a wasteful number, since it uses less digits than its factorization.

2001212210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133606185.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2001212210031 its reverse (1300122121002), we get a palindrome (3301334331033).

The spelling of 2001212210031 in words is "two trillion, one billion, two hundred twelve million, two hundred ten thousand, thirty-one".