11020111211201 has 16 divisors (see below), whose sum is σ = 12070970600400. Its totient is φ = 10014002546688.

The previous prime is 11020111211189. The next prime is 11020111211243. The reversal of 11020111211201 is 10211211102011.

It can be written as a sum of positive squares in 8 ways, for example, as 497872771201 + 10522238440000 = 705601^2 + 3243800^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020111211201 - 2²⁶ = 11020044102337 is a prime.

It is a super-2 number, since 2×11020111211201² (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 (11020111211251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25377815 + ... + 25808403.

It is an arithmetic number, because the mean of its divisors is an integer number (754435662525).

Almost surely, 2^{11020111211201} is an apocalyptic number.

It is an amenable number.

11020111211201 is a deficient number, since it is larger than the sum of its proper divisors (1050859389199).

11020111211201 is a wasteful number, since it uses less digits than its factorization.

11020111211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482548.

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

Adding to 11020111211201 its reverse (10211211102011), we get a palindrome (21231322313212).

The spelling of 11020111211201 in words is "eleven trillion, twenty billion, one hundred eleven million, two hundred eleven thousand, two hundred one".