11021221022211 has 64 divisors (see below), whose sum is σ = 16967722762240. Its totient is φ = 7062723344160.

The previous prime is 11021221022183. The next prime is 11021221022249. The reversal of 11021221022211 is 11222012212011.

11021221022211 is a `hidden beast` number, since 1 + 10 + 212 + 210 + 22 + 211 = 666.

It is not a de Polignac number, because 11021221022211 - 2⁷ = 11021221022083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021221022291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 243233820 + ... + 243279126.

It is an arithmetic number, because the mean of its divisors is an integer number (265120668160).

Almost surely, 2^{11021221022211} is an apocalyptic number.

11021221022211 is a deficient number, since it is larger than the sum of its proper divisors (5946501740029).

11021221022211 is a wasteful number, since it uses less digits than its factorization.

11021221022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47293 (or 47287 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11021221022211 its reverse (11222012212011), we get a palindrome (22243233234222).

The spelling of 11021221022211 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, twenty-two thousand, two hundred eleven".