1121001112121 has 12 divisors (see below), whose sum is σ = 1232200565232. Its totient is φ = 1019070591000.

The previous prime is 1121001112103. The next prime is 1121001112183. The reversal of 1121001112121 is 1212111001211.

It is not a de Polignac number, because 1121001112121 - 2¹⁴ = 1121001095737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121001112096 and 1121001112105.

It is not an unprimeable number, because it can be changed into a prime (1121000112121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10270766 + ... + 10379336.

It is an arithmetic number, because the mean of its divisors is an integer number (102683380436).

Almost surely, 2^{1121001112121} is an apocalyptic number.

1121001112121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121001112121 is a deficient number, since it is larger than the sum of its proper divisors (111199453111).

1121001112121 is a wasteful number, since it uses less digits than its factorization.

1121001112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193924 (or 193913 counting only the distinct ones).

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

Adding to 1121001112121 its reverse (1212111001211), we get a palindrome (2333112113332).

It can be divided in two parts, 112100 and 1112121, that added together give a palindrome (1224221).

The spelling of 1121001112121 in words is "one trillion, one hundred twenty-one billion, one million, one hundred twelve thousand, one hundred twenty-one".