10121203113221 has 8 divisors (see below), whose sum is σ = 10720214386560. Its totient is φ = 9522596993728.

The previous prime is 10121203113209. The next prime is 10121203113223. The reversal of 10121203113221 is 12231130212101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10121203113221 - 2⁶ = 10121203113157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121203113193 and 10121203113202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121203113223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101237021 + ... + 101336946.

It is an arithmetic number, because the mean of its divisors is an integer number (1340026798320).

Almost surely, 2^{10121203113221} is an apocalyptic number.

It is an amenable number.

10121203113221 is a deficient number, since it is larger than the sum of its proper divisors (599011273339).

10121203113221 is a wasteful number, since it uses less digits than its factorization.

10121203113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202576923.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 10121203113221 its reverse (12231130212101), we get a palindrome (22352333325322).

The spelling of 10121203113221 in words is "ten trillion, one hundred twenty-one billion, two hundred three million, one hundred thirteen thousand, two hundred twenty-one".