11020202221 has 8 divisors (see below), whose sum is σ = 13142104704. Its totient is φ = 9035196720.

The previous prime is 11020202197. The next prime is 11020202227. The reversal of 11020202221 is 12220202011.

It is a happy number.

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

It is not a de Polignac number, because 11020202221 - 2⁷ = 11020202093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020202227) 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, 34224070 + ... + 34224391.

It is an arithmetic number, because the mean of its divisors is an integer number (1642763088).

Almost surely, 2^11020202221 is an apocalyptic number.

It is an amenable number.

11020202221 is a deficient number, since it is larger than the sum of its proper divisors (2121902483).

11020202221 is an equidigital number, since it uses as much as digits as its factorization.

11020202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68448491.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11020202221 its reverse (12220202011), we get a palindrome (23240404232).

The spelling of 11020202221 in words is "eleven billion, twenty million, two hundred two thousand, two hundred twenty-one".