221010211010233 has 2 divisors, whose sum is σ = 221010211010234. Its totient is φ = 221010211010232.

The previous prime is 221010211010219. The next prime is 221010211010299. The reversal of 221010211010233 is 332010112010122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114789731716009 + 106220479294224 = 10713997^2 + 10306332^2 .

It is a cyclic number.

It is not a de Polignac number, because 221010211010233 - 2²⁵ = 221010177455801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221010211010233.

It is not a weakly prime, because it can be changed into another prime (221010211010213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505105505116 + 110505105505117.

It is an arithmetic number, because the mean of its divisors is an integer number (110505105505117).

Almost surely, 2^{221010211010233} is an apocalyptic number.

It is an amenable number.

221010211010233 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010211010233 is an equidigital number, since it uses as much as digits as its factorization.

221010211010233 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 19.

Adding to 221010211010233 its reverse (332010112010122), we get a palindrome (553020323020355).

The spelling of 221010211010233 in words is "two hundred twenty-one trillion, ten billion, two hundred eleven million, ten thousand, two hundred thirty-three".