11022202121 has 4 divisors (see below), whose sum is σ = 12596802432. Its totient is φ = 9447601812.

The previous prime is 11022202097. The next prime is 11022202129. The reversal of 11022202121 is 12120222011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12120222011 = 41 ⋅295615171.

It is a cyclic number.

It is not a de Polignac number, because 11022202121 - 2¹⁰ = 11022201097 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 = 11022202096 and 11022202105.

It is not an unprimeable number, because it can be changed into a prime (11022202129) 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, 787300145 + ... + 787300158.

It is an arithmetic number, because the mean of its divisors is an integer number (3149200608).

Almost surely, 2^11022202121 is an apocalyptic number.

It is an amenable number.

11022202121 is a deficient number, since it is larger than the sum of its proper divisors (1574600311).

11022202121 is an equidigital number, since it uses as much as digits as its factorization.

11022202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574600310.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11022202121 its reverse (12120222011), we get a palindrome (23142424132).

The spelling of 11022202121 in words is "eleven billion, twenty-two million, two hundred two thousand, one hundred twenty-one".