10112001121 has 4 divisors (see below), whose sum is σ = 10254423744. Its totient is φ = 9969578500.

The previous prime is 10112001113. The next prime is 10112001143. The reversal of 10112001121 is 12110021101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12110021101 = 106487 ⋅113723.

It is a cyclic number.

It is not a de Polignac number, because 10112001121 - 2³ = 10112001113 is a prime.

It is a super-2 number, since 2×10112001121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112001098 and 10112001107.

It is not an unprimeable number, because it can be changed into a prime (10112001101) 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, 71211205 + ... + 71211346.

It is an arithmetic number, because the mean of its divisors is an integer number (2563605936).

Almost surely, 2^10112001121 is an apocalyptic number.

It is an amenable number.

10112001121 is a deficient number, since it is larger than the sum of its proper divisors (142422623).

10112001121 is an equidigital number, since it uses as much as digits as its factorization.

10112001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142422622.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10112001121 its reverse (12110021101), we get a palindrome (22222022222).

The spelling of 10112001121 in words is "ten billion, one hundred twelve million, one thousand, one hundred twenty-one".