10212200121121 has 4 divisors (see below), whose sum is σ = 10212226455744. Its totient is φ = 10212173786500.

The previous prime is 10212200121083. The next prime is 10212200121181. The reversal of 10212200121121 is 12112100221201.

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 10212200121121 - 2¹⁵ = 10212200088353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212200121095 and 10212200121104.

It is not an unprimeable number, because it can be changed into a prime (10212200121181) 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, 12576805 + ... + 13364146.

It is an arithmetic number, because the mean of its divisors is an integer number (2553056613936).

Almost surely, 2^{10212200121121} is an apocalyptic number.

It is an amenable number.

10212200121121 is a deficient number, since it is larger than the sum of its proper divisors (26334623).

10212200121121 is an equidigital number, since it uses as much as digits as its factorization.

10212200121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26334622.

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

Adding to 10212200121121 its reverse (12112100221201), we get a palindrome (22324300342322).

The spelling of 10212200121121 in words is "ten trillion, two hundred twelve billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-one".