2100002011212 has 24 divisors (see below), whose sum is σ = 5600005363456. Its totient is φ = 600000574608.

The previous prime is 2100002011199. The next prime is 2100002011213. The reversal of 2100002011212 is 2121102000012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2100002011213) 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, 12500011888 + ... + 12500012055.

Almost surely, 2^{2100002011212} is an apocalyptic number.

It is an amenable number.

2100002011212 is an abundant number, since it is smaller than the sum of its proper divisors (3500003352244).

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

2100002011212 is a wasteful number, since it uses less digits than its factorization.

2100002011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000023957 (or 25000023955 counting only the distinct ones).

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

Adding to 2100002011212 its reverse (2121102000012), we get a palindrome (4221104011224).

The spelling of 2100002011212 in words is "two trillion, one hundred billion, two million, eleven thousand, two hundred twelve".