2111001212012 has 192 divisors, whose sum is σ = 4956432768000. Its totient is φ = 777722480640.

The previous prime is 2111001212009. The next prime is 2111001212041. The reversal of 2111001212012 is 2102121001112.

It is a super-2 number, since 2×2111001212012² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 159712028 + ... + 159725244.

It is an arithmetic number, because the mean of its divisors is an integer number (25814754000).

Almost surely, 2^{2111001212012} is an apocalyptic number.

2111001212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111001212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2478216384000).

2111001212012 is an abundant number, since it is smaller than the sum of its proper divisors (2845431555988).

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

2111001212012 is a wasteful number, since it uses less digits than its factorization.

2111001212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13813 counting only the distinct ones).

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

Adding to 2111001212012 its reverse (2102121001112), we get a palindrome (4213122213124).

The spelling of 2111001212012 in words is "two trillion, one hundred eleven billion, one million, two hundred twelve thousand, twelve".