11221222212201 has 16 divisors (see below), whose sum is σ = 15448899780608. Its totient is φ = 7237324630800.

The previous prime is 11221222212133. The next prime is 11221222212223. The reversal of 11221222212201 is 10221222212211.

It is not a de Polignac number, because 11221222212201 - 2¹⁴ = 11221222195817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221222212251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17801641 + ... + 18421206.

It is an arithmetic number, because the mean of its divisors is an integer number (965556236288).

Almost surely, 2^{11221222212201} is an apocalyptic number.

It is an amenable number.

11221222212201 is a deficient number, since it is larger than the sum of its proper divisors (4227677568407).

11221222212201 is a wasteful number, since it uses less digits than its factorization.

11221222212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36226212.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11221222212201 its reverse (10221222212211), we get a palindrome (21442444424412).

The spelling of 11221222212201 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred one".