2100101212212 has 24 divisors (see below), whose sum is σ = 5158143328800. Its totient is φ = 663189856416.

The previous prime is 2100101212207. The next prime is 2100101212213. The reversal of 2100101212212 is 2122121010012.

It is a junction number, because it is equal to n+sod(n) for n = 2100101212191 and 2100101212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100101212213) 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, 4605484887 + ... + 4605485342.

It is an arithmetic number, because the mean of its divisors is an integer number (214922638700).

Almost surely, 2^{2100101212212} is an apocalyptic number.

It is an amenable number.

2100101212212 is an abundant number, since it is smaller than the sum of its proper divisors (3058042116588).

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

2100101212212 is a wasteful number, since it uses less digits than its factorization.

2100101212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210970255 (or 9210970253 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2100101212212 its reverse (2122121010012), we get a palindrome (4222222222224).

The spelling of 2100101212212 in words is "two trillion, one hundred billion, one hundred one million, two hundred twelve thousand, two hundred twelve".