11011012002221 has 8 divisors (see below), whose sum is σ = 13728014963904. Its totient is φ = 8580009352320.

The previous prime is 11011012002121. The next prime is 11011012002251. The reversal of 11011012002221 is 12220021011011.

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

It is not a de Polignac number, because 11011012002221 - 2³⁸ = 10736134095277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011012002196 and 11011012002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011012002251) 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, 71500077860 + ... + 71500078013.

It is an arithmetic number, because the mean of its divisors is an integer number (1716001870488).

Almost surely, 2^{11011012002221} is an apocalyptic number.

11011012002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011012002221 is a deficient number, since it is larger than the sum of its proper divisors (2717002961683).

11011012002221 is a wasteful number, since it uses less digits than its factorization.

11011012002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143000155891.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11011012002221 its reverse (12220021011011), we get a palindrome (23231033013232).

The spelling of 11011012002221 in words is "eleven trillion, eleven billion, twelve million, two thousand, two hundred twenty-one".