221102021033 has 2 divisors, whose sum is σ = 221102021034. Its totient is φ = 221102021032.

The previous prime is 221102021003. The next prime is 221102021039. The reversal of 221102021033 is 330120201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219818447104 + 1283573929 = 468848^2 + 35827^2 .

It is a cyclic number.

It is not a de Polignac number, because 221102021033 - 2²⁴ = 221085243817 is a prime.

It is a super-2 number, since 2×221102021033² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221102021039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551010516 + 110551010517.

It is an arithmetic number, because the mean of its divisors is an integer number (110551010517).

Almost surely, 2^221102021033 is an apocalyptic number.

It is an amenable number.

221102021033 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102021033 is an equidigital number, since it uses as much as digits as its factorization.

221102021033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221102021033 its reverse (330120201122), we get a palindrome (551222222155).

The spelling of 221102021033 in words is "two hundred twenty-one billion, one hundred two million, twenty-one thousand, thirty-three".