2012112102121 has 4 divisors (see below), whose sum is σ = 2195031384144. Its totient is φ = 1829192820100.

The previous prime is 2012112102103. The next prime is 2012112102151. The reversal of 2012112102121 is 1212012112102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012112102121 - 2⁹ = 2012112101609 is a prime.

It is a super-2 number, since 2×2012112102121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012112102095 and 2012112102104.

It is not an unprimeable number, because it can be changed into a prime (2012112102151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91459640995 + ... + 91459641016.

It is an arithmetic number, because the mean of its divisors is an integer number (548757846036).

Almost surely, 2^{2012112102121} is an apocalyptic number.

It is an amenable number.

2012112102121 is a deficient number, since it is larger than the sum of its proper divisors (182919282023).

2012112102121 is a wasteful number, since it uses less digits than its factorization.

2012112102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182919282022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012112102121 its reverse (1212012112102), we get a palindrome (3224124214223).

It can be divided in two parts, 2012112102 and 121, that multiplied together give a palindrome (243465564342).

The spelling of 2012112102121 in words is "two trillion, twelve billion, one hundred twelve million, one hundred two thousand, one hundred twenty-one".