221100011022133 has 4 divisors (see below), whose sum is σ = 221102084129260. Its totient is φ = 221097937915008.

The previous prime is 221100011022097. The next prime is 221100011022197. The reversal of 221100011022133 is 331220110001122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203292902318724 + 17807108703409 = 14258082^2 + 4219847^2 .

It is a cyclic number.

It is not a de Polignac number, because 221100011022133 - 2²⁹ = 221099474151221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221100011022133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100011022533) 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, 1036393578 + ... + 1036606891.

It is an arithmetic number, because the mean of its divisors is an integer number (55275521032315).

Almost surely, 2^{221100011022133} is an apocalyptic number.

It is an amenable number.

221100011022133 is a deficient number, since it is larger than the sum of its proper divisors (2073107127).

221100011022133 is a wasteful number, since it uses less digits than its factorization.

221100011022133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073107126.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221100011022133 its reverse (331220110001122), we get a palindrome (552320121023255).

The spelling of 221100011022133 in words is "two hundred twenty-one trillion, one hundred billion, eleven million, twenty-two thousand, one hundred thirty-three".