221440102033 has 4 divisors (see below), whose sum is σ = 221504161060. Its totient is φ = 221376043008.

The previous prime is 221440102019. The next prime is 221440102043. The reversal of 221440102033 is 330201044122.

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 90825082384 + 130615019649 = 301372^2 + 361407^2 .

It is a cyclic number.

It is not a de Polignac number, because 221440102033 - 2²⁵ = 221406547601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221440101995 and 221440102013.

It is not an unprimeable number, because it can be changed into a prime (221440102003) 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, 32024328 + ... + 32031241.

It is an arithmetic number, because the mean of its divisors is an integer number (55376040265).

Almost surely, 2^221440102033 is an apocalyptic number.

It is an amenable number.

221440102033 is a deficient number, since it is larger than the sum of its proper divisors (64059027).

221440102033 is an equidigital number, since it uses as much as digits as its factorization.

221440102033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64059026.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221440102033 its reverse (330201044122), we get a palindrome (551641146155).

The spelling of 221440102033 in words is "two hundred twenty-one billion, four hundred forty million, one hundred two thousand, thirty-three".