11011021121201 has 8 divisors (see below), whose sum is σ = 11391261652008. Its totient is φ = 10636098640000.

The previous prime is 11011021121179. The next prime is 11011021121263. The reversal of 11011021121201 is 10212112011011.

It can be written as a sum of positive squares in 4 ways, for example, as 1155195040000 + 9855826081201 = 1074800^2 + 3139399^2 .

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

It is not a de Polignac number, because 11011021121201 - 2¹⁴ = 11011021104817 is a prime.

It is a super-2 number, since 2×11011021121201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011021121281) 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, 1329508190 + ... + 1329516471.

It is an arithmetic number, because the mean of its divisors is an integer number (1423907706501).

Almost surely, 2^{11011021121201} is an apocalyptic number.

It is an amenable number.

11011021121201 is a deficient number, since it is larger than the sum of its proper divisors (380240530807).

11011021121201 is a wasteful number, since it uses less digits than its factorization.

11011021121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659024803.

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

Adding to 11011021121201 its reverse (10212112011011), we get a palindrome (21223133132212).

The spelling of 11011021121201 in words is "eleven trillion, eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred one".