2112100121121 has 8 divisors (see below), whose sum is σ = 2816699799360. Its totient is φ = 1407783595152.

The previous prime is 2112100121119. The next prime is 2112100121179. The reversal of 2112100121121 is 1211210012112.

It is a happy number.

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

It is not a de Polignac number, because 2112100121121 - 2¹ = 2112100121119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112100121121.

It is not an unprimeable number, because it can be changed into a prime (2112100126121) 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, 70770661 + ... + 70800498.

It is an arithmetic number, because the mean of its divisors is an integer number (352087474920).

Almost surely, 2^{2112100121121} is an apocalyptic number.

It is an amenable number.

2112100121121 is a deficient number, since it is larger than the sum of its proper divisors (704599678239).

2112100121121 is a wasteful number, since it uses less digits than its factorization.

2112100121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141576135.

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

Adding to 2112100121121 its reverse (1211210012112), we get a palindrome (3323310133233).

The spelling of 2112100121121 in words is "two trillion, one hundred twelve billion, one hundred million, one hundred twenty-one thousand, one hundred twenty-one".