1121120101001 has 4 divisors (see below), whose sum is σ = 1121122619904. Its totient is φ = 1121117582100.

The previous prime is 1121120100913. The next prime is 1121120101039. The reversal of 1121120101001 is 1001010211211.

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 1121120101001 - 2¹⁸ = 1121119838857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121120101501) 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, 393245 + ... + 1548186.

It is an arithmetic number, because the mean of its divisors is an integer number (280280654976).

Almost surely, 2^{1121120101001} is an apocalyptic number.

It is an amenable number.

1121120101001 is a deficient number, since it is larger than the sum of its proper divisors (2518903).

1121120101001 is an equidigital number, since it uses as much as digits as its factorization.

1121120101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518902.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1121120101001 its reverse (1001010211211), we get a palindrome (2122130312212).

The spelling of 1121120101001 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, one hundred one thousand, one".