221132212033 has 2 divisors, whose sum is σ = 221132212034. Its totient is φ = 221132212032.

The previous prime is 221132212019. The next prime is 221132212087. The reversal of 221132212033 is 330212231122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212721121089 + 8411090944 = 461217^2 + 91712^2 .

It is a cyclic number.

It is not a de Polignac number, because 221132212033 - 2⁵ = 221132212001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221132211995 and 221132212013.

It is not a weakly prime, because it can be changed into another prime (221132212013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110566106016 + 110566106017.

It is an arithmetic number, because the mean of its divisors is an integer number (110566106017).

Almost surely, 2^221132212033 is an apocalyptic number.

It is an amenable number.

221132212033 is a deficient number, since it is larger than the sum of its proper divisors (1).

221132212033 is an equidigital number, since it uses as much as digits as its factorization.

221132212033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221132212033 its reverse (330212231122), we get a palindrome (551344443155).

The spelling of 221132212033 in words is "two hundred twenty-one billion, one hundred thirty-two million, two hundred twelve thousand, thirty-three".