2102212000121 has 4 divisors (see below), whose sum is σ = 2117335827600. Its totient is φ = 2087088172644.

The previous prime is 2102211999991. The next prime is 2102212000129. The reversal of 2102212000121 is 1210002122012.

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 a de Polignac number, because none of the positive numbers 2^k-2102212000121 is a prime.

It is a super-3 number, since 3×2102212000121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102212000096 and 2102212000105.

It is not an unprimeable number, because it can be changed into a prime (2102212000129) 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, 7561913531 + ... + 7561913808.

It is an arithmetic number, because the mean of its divisors is an integer number (529333956900).

Almost surely, 2^{2102212000121} is an apocalyptic number.

It is an amenable number.

2102212000121 is a deficient number, since it is larger than the sum of its proper divisors (15123827479).

2102212000121 is a wasteful number, since it uses less digits than its factorization.

2102212000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15123827478.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2102212000121 its reverse (1210002122012), we get a palindrome (3312214122133).

The spelling of 2102212000121 in words is "two trillion, one hundred two billion, two hundred twelve million, one hundred twenty-one", and thus it is an aban number.