11012222202221 has 4 divisors (see below), whose sum is σ = 11040974740992. Its totient is φ = 10983469663452.

The previous prime is 11012222202197. The next prime is 11012222202229. The reversal of 11012222202221 is 12220222221011.

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 a de Polignac number, because none of the positive numbers 2^k-11012222202221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012222202193 and 11012222202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012222202229) 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, 14376268811 + ... + 14376269576.

It is an arithmetic number, because the mean of its divisors is an integer number (2760243685248).

Almost surely, 2^{11012222202221} is an apocalyptic number.

It is an amenable number.

11012222202221 is a deficient number, since it is larger than the sum of its proper divisors (28752538771).

11012222202221 is an equidigital number, since it uses as much as digits as its factorization.

11012222202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28752538770.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11012222202221 its reverse (12220222221011), we get a palindrome (23232444423232).

The spelling of 11012222202221 in words is "eleven trillion, twelve billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-one".