10011221222209 has 4 divisors (see below), whose sum is σ = 10017226755504. Its totient is φ = 10005215688916.

The previous prime is 10011221222207. The next prime is 10011221222257. The reversal of 10011221222209 is 90222212211001.

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 10011221222209 - 2¹ = 10011221222207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011221222203) 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, 3002764147 + ... + 3002767480.

It is an arithmetic number, because the mean of its divisors is an integer number (2504306688876).

Almost surely, 2^{10011221222209} is an apocalyptic number.

It is an amenable number.

10011221222209 is a deficient number, since it is larger than the sum of its proper divisors (6005533295).

10011221222209 is an equidigital number, since it uses as much as digits as its factorization.

10011221222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005533294.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 10011221222209 in words is "ten trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred nine".