11022200000021 has 4 divisors (see below), whose sum is σ = 12596800000032. Its totient is φ = 9447600000012.

The previous prime is 11022200000017. The next prime is 11022200000029. The reversal of 11022200000021 is 12000000222011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11022200000021 - 2² = 11022200000017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11022199999948 and 11022200000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022200000029) 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, 787299999995 + ... + 787300000008.

It is an arithmetic number, because the mean of its divisors is an integer number (3149200000008).

Almost surely, 2^{11022200000021} is an apocalyptic number.

It is an amenable number.

11022200000021 is a deficient number, since it is larger than the sum of its proper divisors (1574600000011).

11022200000021 is an equidigital number, since it uses as much as digits as its factorization.

11022200000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574600000010.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11022200000021 its reverse (12000000222011), we get a palindrome (23022200222032).

The spelling of 11022200000021 in words is "eleven trillion, twenty-two billion, two hundred million, twenty-one", and thus it is an aban number.