2012210002100 has 36 divisors (see below), whose sum is σ = 4366557337548. Its totient is φ = 804872640000.

The previous prime is 2012210002051. The next prime is 2012210002109. The reversal of 2012210002100 is 12000122102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 197596252324 + 1814613749776 = 444518^2 + 1347076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012210002109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13455740 + ... + 13604460.

Almost surely, 2^{2012210002100} is an apocalyptic number.

2012210002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012210002100 is an abundant number, since it is smaller than the sum of its proper divisors (2354347335448).

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

2012210002100 is a wasteful number, since it uses less digits than its factorization.

2012210002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284036 (or 284029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2012210002100 its reverse (12000122102), we get a palindrome (2024210124202).

The spelling of 2012210002100 in words is "two trillion, twelve billion, two hundred ten million, two thousand, one hundred".