2120111100212 has 96 divisors (see below), whose sum is σ = 4652993372160. Its totient is φ = 824780880000.

The previous prime is 2120111100199. The next prime is 2120111100229. The reversal of 2120111100212 is 2120011110212.

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 31 ways as a sum of consecutive naturals, for example, 1029287 + ... + 2302097.

It is an arithmetic number, because the mean of its divisors is an integer number (48468680960).

Almost surely, 2^{2120111100212} 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 2120111100212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2326496686080).

2120111100212 is an abundant number, since it is smaller than the sum of its proper divisors (2532882271948).

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

2120111100212 is a wasteful number, since it uses less digits than its factorization.

2120111100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272973 (or 1272971 counting only the distinct ones).

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

Adding to 2120111100212 its reverse (2120011110212), we get a palindrome (4240122210424).

The spelling of 2120111100212 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred thousand, two hundred twelve".