2012102121 has 8 divisors (see below), whose sum is σ = 2712947040. Its totient is φ = 1326329312.

The previous prime is 2012102117. The next prime is 2012102129. The reversal of 2012102121 is 1212012102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012102121 - 2² = 2012102117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012102097 and 2012102106.

It is not an unprimeable number, because it can be changed into a prime (2012102129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3767715 + ... + 3768248.

It is an arithmetic number, because the mean of its divisors is an integer number (339118380).

Almost surely, 2^2012102121 is an apocalyptic number.

It is an amenable number.

2012102121 is a deficient number, since it is larger than the sum of its proper divisors (700844919).

2012102121 is an equidigital number, since it uses as much as digits as its factorization.

2012102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536055.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2012102121 is about 44856.4613071517. The cubic root of 2012102121 is about 1262.4572273978.

Adding to 2012102121 its reverse (1212012102), we get a palindrome (3224114223).

It can be divided in two parts, 2012102 and 121, that multiplied together give a palindrome (243464342).

The spelling of 2012102121 in words is "two billion, twelve million, one hundred two thousand, one hundred twenty-one".