10111022121121 has 4 divisors (see below), whose sum is σ = 10183763287600. Its totient is φ = 10038280954644.

The previous prime is 10111022121077. The next prime is 10111022121157. The reversal of 10111022121121 is 12112122011101.

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 a de Polignac number, because none of the positive numbers 2^k-10111022121121 is a prime.

It is a super-3 number, since 3×10111022121121³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111022121095 and 10111022121104.

It is not an unprimeable number, because it can be changed into a prime (10111022121721) 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, 36370583031 + ... + 36370583308.

It is an arithmetic number, because the mean of its divisors is an integer number (2545940821900).

Almost surely, 2^{10111022121121} is an apocalyptic number.

It is an amenable number.

10111022121121 is a deficient number, since it is larger than the sum of its proper divisors (72741166479).

10111022121121 is an equidigital number, since it uses as much as digits as its factorization.

10111022121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72741166478.

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

Adding to 10111022121121 its reverse (12112122011101), we get a palindrome (22223144132222).

The spelling of 10111022121121 in words is "ten trillion, one hundred eleven billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".