212000102002121 has 4 divisors (see below), whose sum is σ = 212165339806992. Its totient is φ = 211834864197252.

The previous prime is 212000102002109. The next prime is 212000102002127. The reversal of 212000102002121 is 121200201000212.

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 212000102002121 - 2³⁰ = 211999028260297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212000102002096 and 212000102002105.

It is not an unprimeable number, because it can be changed into a prime (212000102002127) 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, 82618900511 + ... + 82618903076.

It is an arithmetic number, because the mean of its divisors is an integer number (53041334951748).

Almost surely, 2^{212000102002121} is an apocalyptic number.

It is an amenable number.

212000102002121 is a deficient number, since it is larger than the sum of its proper divisors (165237804871).

212000102002121 is a wasteful number, since it uses less digits than its factorization.

212000102002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165237804870.

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

Adding to 212000102002121 its reverse (121200201000212), we get a palindrome (333200303002333).

The spelling of 212000102002121 in words is "two hundred twelve trillion, one hundred two million, two thousand, one hundred twenty-one".