11111021201011 has 8 divisors (see below), whose sum is σ = 11184695917344. Its totient is φ = 11037347692800.

The previous prime is 11111021200999. The next prime is 11111021201053. The reversal of 11111021201011 is 11010212011111.

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 11111021201011 - 2¹³ = 11111021192819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111021200982 and 11111021201000.

It is not an unprimeable number, because it can be changed into a prime (11111021211011) 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, 25348965 + ... + 25783561.

It is an arithmetic number, because the mean of its divisors is an integer number (1398086989668).

Almost surely, 2^{11111021201011} is an apocalyptic number.

11111021201011 is a deficient number, since it is larger than the sum of its proper divisors (73674716333).

11111021201011 is a wasteful number, since it uses less digits than its factorization.

11111021201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604061.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11111021201011 its reverse (11010212011111), we get a palindrome (22121233212122).

The spelling of 11111021201011 in words is "eleven trillion, one hundred eleven billion, twenty-one million, two hundred one thousand, eleven".