11012223203121 has 32 divisors (see below), whose sum is σ = 17141639344128. Its totient is φ = 6157346883840.

The previous prime is 11012223203039. The next prime is 11012223203147. The reversal of 11012223203121 is 12130232221011.

It is not a de Polignac number, because 11012223203121 - 2⁷ = 11012223202993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11012223203021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2831481 + ... + 5481033.

It is an arithmetic number, because the mean of its divisors is an integer number (535676229504).

Almost surely, 2^{11012223203121} is an apocalyptic number.

It is an amenable number.

11012223203121 is a deficient number, since it is larger than the sum of its proper divisors (6129416141007).

11012223203121 is a wasteful number, since it uses less digits than its factorization.

11012223203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653821.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11012223203121 its reverse (12130232221011), we get a palindrome (23142455424132).

The spelling of 11012223203121 in words is "eleven trillion, twelve billion, two hundred twenty-three million, two hundred three thousand, one hundred twenty-one".