2001212103100 has 72 divisors (see below), whose sum is σ = 5134144206240. Its totient is φ = 662470206720.

The previous prime is 2001212103091. The next prime is 2001212103151. The reversal of 2001212103100 is 13012121002.

It is a super-2 number, since 2×2001212103100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49270639 + ... + 49311238.

It is an arithmetic number, because the mean of its divisors is an integer number (71307558420).

Almost surely, 2^{2001212103100} is an apocalyptic number.

2001212103100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001212103100 is an abundant number, since it is smaller than the sum of its proper divisors (3132932103140).

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

2001212103100 is a wasteful number, since it uses less digits than its factorization.

2001212103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98581927 (or 98581920 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001212103100 its reverse (13012121002), we get a palindrome (2014224224102).

The spelling of 2001212103100 in words is "two trillion, one billion, two hundred twelve million, one hundred three thousand, one hundred".