10221769 has 2 divisors, whose sum is σ = 10221770. Its totient is φ = 10221768.

The previous prime is 10221767. The next prime is 10221773. The reversal of 10221769 is 96712201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8922169 + 1299600 = 2987^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221769 - 2¹ = 10221767 is a prime.

It is a super-2 number, since 2×10221769² = 208969122978722, which contains 22 as substring.

Together with 10221767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10221767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110884 + 5110885.

It is an arithmetic number, because the mean of its divisors is an integer number (5110885).

Almost surely, 2^10221769 is an apocalyptic number.

It is an amenable number.

10221769 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221769 is an equidigital number, since it uses as much as digits as its factorization.

10221769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 10221769 is about 3197.1501372316. The cubic root of 10221769 is about 217.0244615547.

The spelling of 10221769 in words is "ten million, two hundred twenty-one thousand, seven hundred sixty-nine".