212200012110121 has 4 divisors (see below), whose sum is σ = 242514299554432. Its totient is φ = 181885724665812.

The previous prime is 212200012110109. The next prime is 212200012110131. The reversal of 212200012110121 is 121011210002212.

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 212200012110121 - 2²⁷ = 212199877892393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200012110095 and 212200012110104.

It is not an unprimeable number, because it can be changed into a prime (212200012110131) 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, 15157143722145 + ... + 15157143722158.

It is an arithmetic number, because the mean of its divisors is an integer number (60628574888608).

Almost surely, 2^{212200012110121} is an apocalyptic number.

It is an amenable number.

212200012110121 is a deficient number, since it is larger than the sum of its proper divisors (30314287444311).

212200012110121 is an equidigital number, since it uses as much as digits as its factorization.

212200012110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30314287444310.

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

Adding to 212200012110121 its reverse (121011210002212), we get a palindrome (333211222112333).

The spelling of 212200012110121 in words is "two hundred twelve trillion, two hundred billion, twelve million, one hundred ten thousand, one hundred twenty-one".