11012222211121 has 4 divisors (see below), whose sum is σ = 11079781856752. Its totient is φ = 10944662565492.

The previous prime is 11012222211103. The next prime is 11012222211169. The reversal of 11012222211121 is 12111222221011.

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 11012222211121 - 2⁹ = 11012222210609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012222211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33779822571 + ... + 33779822896.

It is an arithmetic number, because the mean of its divisors is an integer number (2769945464188).

Almost surely, 2^{11012222211121} is an apocalyptic number.

It is an amenable number.

11012222211121 is a deficient number, since it is larger than the sum of its proper divisors (67559645631).

11012222211121 is an equidigital number, since it uses as much as digits as its factorization.

11012222211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67559645630.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11012222211121 its reverse (12111222221011), we get a palindrome (23123444432132).

The spelling of 11012222211121 in words is "eleven trillion, twelve billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-one".