10111021102121 has 4 divisors (see below), whose sum is σ = 10282394341200. Its totient is φ = 9939647863044.

The previous prime is 10111021102109. The next prime is 10111021102139. The reversal of 10111021102121 is 12120112011101.

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 10111021102121 - 2¹⁸ = 10111020839977 is a prime.

It is a super-3 number, since 3×10111021102121³ (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 = 10111021102096 and 10111021102105.

It is not an unprimeable number, because it can be changed into a prime (10111021102141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85686619451 + ... + 85686619568.

It is an arithmetic number, because the mean of its divisors is an integer number (2570598585300).

Almost surely, 2^{10111021102121} is an apocalyptic number.

It is an amenable number.

10111021102121 is a deficient number, since it is larger than the sum of its proper divisors (171373239079).

10111021102121 is an equidigital number, since it uses as much as digits as its factorization.

10111021102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171373239078.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10111021102121 its reverse (12120112011101), we get a palindrome (22231133113222).

The spelling of 10111021102121 in words is "ten trillion, one hundred eleven billion, twenty-one million, one hundred two thousand, one hundred twenty-one".