11101222212001 has 4 divisors (see below), whose sum is σ = 11167696596672. Its totient is φ = 11034747827332.

The previous prime is 11101222211983. The next prime is 11101222212007. The reversal of 11101222212001 is 10021222210111.

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 11101222212001 - 2¹³ = 11101222203809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101222212007) 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, 33237192085 + ... + 33237192418.

It is an arithmetic number, because the mean of its divisors is an integer number (2791924149168).

Almost surely, 2^{11101222212001} is an apocalyptic number.

It is an amenable number.

11101222212001 is a deficient number, since it is larger than the sum of its proper divisors (66474384671).

11101222212001 is an equidigital number, since it uses as much as digits as its factorization.

11101222212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66474384670.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11101222212001 its reverse (10021222210111), we get a palindrome (21122444422112).

The spelling of 11101222212001 in words is "eleven trillion, one hundred one billion, two hundred twenty-two million, two hundred twelve thousand, one".