11111021012001 has 128 divisors (see below), whose sum is σ = 16770038906880. Its totient is φ = 6509998522368.

The previous prime is 11111021011957. The next prime is 11111021012009. The reversal of 11111021012001 is 10021012011111.

11111021012001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111021012001 - 2¹⁷ = 11111020880929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111021012009) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3294104751 + ... + 3294108123.

It is an arithmetic number, because the mean of its divisors is an integer number (131015928960).

Almost surely, 2^{11111021012001} is an apocalyptic number.

It is an amenable number.

11111021012001 is a deficient number, since it is larger than the sum of its proper divisors (5659017894879).

11111021012001 is a wasteful number, since it uses less digits than its factorization.

11111021012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11111021012001 its reverse (10021012011111), we get a palindrome (21132033023112).

The spelling of 11111021012001 in words is "eleven trillion, one hundred eleven billion, twenty-one million, twelve thousand, one".