10002100222121 has 16 divisors (see below), whose sum is σ = 11665325750400. Its totient is φ = 8572443097680.

The previous prime is 10002100222117. The next prime is 10002100222129. The reversal of 10002100222121 is 12122200120001.

It is not a de Polignac number, because 10002100222121 - 2² = 10002100222117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10002100222096 and 10002100222105.

It is not an unprimeable number, because it can be changed into a prime (10002100222129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2427566 + ... + 5088936.

It is an arithmetic number, because the mean of its divisors is an integer number (729082859400).

Almost surely, 2^{10002100222121} is an apocalyptic number.

It is an amenable number.

10002100222121 is a deficient number, since it is larger than the sum of its proper divisors (1663225528279).

10002100222121 is an equidigital number, since it uses as much as digits as its factorization.

10002100222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672349 (or 2672335 counting only the distinct ones).

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

Adding to 10002100222121 its reverse (12122200120001), we get a palindrome (22124300342122).

The spelling of 10002100222121 in words is "ten trillion, two billion, one hundred million, two hundred twenty-two thousand, one hundred twenty-one".