11101021022011 has 4 divisors (see below), whose sum is σ = 11111915057400. Its totient is φ = 11090126986624.

The previous prime is 11101021021969. The next prime is 11101021022083. The reversal of 11101021022011 is 11022012010111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11101021022011 - 2²⁷ = 11100886804283 is a prime.

It is a super-2 number, since 2×11101021022011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101021021982 and 11101021022000.

It is not an unprimeable number, because it can be changed into a prime (11101021022911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5447016166 + ... + 5447018203.

It is an arithmetic number, because the mean of its divisors is an integer number (2777978764350).

Almost surely, 2^{11101021022011} is an apocalyptic number.

11101021022011 is a deficient number, since it is larger than the sum of its proper divisors (10894035389).

11101021022011 is a wasteful number, since it uses less digits than its factorization.

11101021022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10894035388.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11101021022011 its reverse (11022012010111), we get a palindrome (22123033032122).

The spelling of 11101021022011 in words is "eleven trillion, one hundred one billion, twenty-one million, twenty-two thousand, eleven".