2101212001112 has 64 divisors (see below), whose sum is σ = 4556954894400. Its totient is φ = 889664624640.

The previous prime is 2101212001051. The next prime is 2101212001177. The reversal of 2101212001112 is 2111002121012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5871812 + ... + 6219372.

It is an arithmetic number, because the mean of its divisors is an integer number (71202420225).

Almost surely, 2^{2101212001112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101212001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2278477447200).

2101212001112 is an abundant number, since it is smaller than the sum of its proper divisors (2455742893288).

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

2101212001112 is a wasteful number, since it uses less digits than its factorization.

2101212001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348876 (or 348872 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2101212001112 its reverse (2111002121012), we get a palindrome (4212214122124).

The spelling of 2101212001112 in words is "two trillion, one hundred one billion, two hundred twelve million, one thousand, one hundred twelve".