11021111222001 has 8 divisors (see below), whose sum is σ = 14694957551424. Its totient is φ = 7347336186960.

The previous prime is 11021111221997. The next prime is 11021111222111. The reversal of 11021111222001 is 10022211112011.

It is a happy number.

11021111222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11021111222001 - 2² = 11021111221997 is a prime.

It is a super-3 number, since 3×11021111222001³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11021111222501) 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, 17461845 + ... + 18081986.

It is an arithmetic number, because the mean of its divisors is an integer number (1836869693928).

Almost surely, 2^{11021111222001} is an apocalyptic number.

It is an amenable number.

11021111222001 is a deficient number, since it is larger than the sum of its proper divisors (3673846329423).

11021111222001 is a wasteful number, since it uses less digits than its factorization.

11021111222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35647191.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11021111222001 its reverse (10022211112011), we get a palindrome (21043322334012).

The spelling of 11021111222001 in words is "eleven trillion, twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, one".