221120236229 has 2 divisors, whose sum is σ = 221120236230. Its totient is φ = 221120236228.

The previous prime is 221120236217. The next prime is 221120236243. The reversal of 221120236229 is 922632021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209647684129 + 11472552100 = 457873^2 + 107110^2 .

It is a cyclic number.

It is not a de Polignac number, because 221120236229 - 2³⁶ = 152400759493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221120236195 and 221120236204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120230229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560118114 + 110560118115.

It is an arithmetic number, because the mean of its divisors is an integer number (110560118115).

Almost surely, 2^221120236229 is an apocalyptic number.

It is an amenable number.

221120236229 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120236229 is an equidigital number, since it uses as much as digits as its factorization.

221120236229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 221120236229 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred thirty-six thousand, two hundred twenty-nine".