11022002021 has 2 divisors, whose sum is σ = 11022002022. Its totient is φ = 11022002020.

The previous prime is 11022001999. The next prime is 11022002029. The reversal of 11022002021 is 12020022011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10667997796 + 354004225 = 103286^2 + 18815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11022002021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022001993 and 11022002011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11022002029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511001010 + 5511001011.

It is an arithmetic number, because the mean of its divisors is an integer number (5511001011).

Almost surely, 2^11022002021 is an apocalyptic number.

It is an amenable number.

11022002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022002021 is an equidigital number, since it uses as much as digits as its factorization.

11022002021 is an evil number, because the sum of its binary digits is even.

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

Adding to 11022002021 its reverse (12020022011), we get a palindrome (23042024032).

The spelling of 11022002021 in words is "eleven billion, twenty-two million, two thousand, twenty-one".