10121202121111 has 8 divisors (see below), whose sum is σ = 10201733603600. Its totient is φ = 10040780882880.

The previous prime is 10121202121087. The next prime is 10121202121171. The reversal of 10121202121111 is 11112120212101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121202121111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121202121171) 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, 27376716 + ... + 27743953.

It is an arithmetic number, because the mean of its divisors is an integer number (1275216700450).

Almost surely, 2^{10121202121111} is an apocalyptic number.

10121202121111 is a deficient number, since it is larger than the sum of its proper divisors (80531482489).

10121202121111 is a wasteful number, since it uses less digits than its factorization.

10121202121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55122129.

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

Adding to 10121202121111 its reverse (11112120212101), we get a palindrome (21233322333212).

The spelling of 10121202121111 in words is "ten trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, one hundred eleven".