1111020121001 has 8 divisors (see below), whose sum is σ = 1269743712384. Its totient is φ = 952298137440.

The previous prime is 1111020120989. The next prime is 1111020121063. The reversal of 1111020121001 is 1001210201111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111020121001 - 2¹⁰ = 1111020119977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111020121501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2212421 + ... + 2667741.

It is an arithmetic number, because the mean of its divisors is an integer number (158717964048).

Almost surely, 2^{1111020121001} is an apocalyptic number.

It is an amenable number.

1111020121001 is a deficient number, since it is larger than the sum of its proper divisors (158723591383).

1111020121001 is an equidigital number, since it uses as much as digits as its factorization.

1111020121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803911.

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

Adding to 1111020121001 its reverse (1001210201111), we get a palindrome (2112230322112).

The spelling of 1111020121001 in words is "one trillion, one hundred eleven billion, twenty million, one hundred twenty-one thousand, one".