2121210011112 has 64 divisors (see below), whose sum is σ = 5447161370880. Its totient is φ = 688025747712.

The previous prime is 2121210011093. The next prime is 2121210011119. The reversal of 2121210011112 is 2111100121212.

It is a happy number.

It is a super-3 number, since 3×2121210011112³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2121210011091 and 2121210011100.

It is not an unprimeable number, because it can be changed into a prime (2121210011119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5239843 + ... + 5630130.

It is an arithmetic number, because the mean of its divisors is an integer number (85111896420).

Almost surely, 2^{2121210011112} is an apocalyptic number.

It is an amenable number.

2121210011112 is an abundant number, since it is smaller than the sum of its proper divisors (3325951359768).

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

2121210011112 is a wasteful number, since it uses less digits than its factorization.

2121210011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870202 (or 10870198 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2121210011112 its reverse (2111100121212), we get a palindrome (4232310132324).

The spelling of 2121210011112 in words is "two trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, one hundred twelve".