2221069 has 2 divisors, whose sum is σ = 2221070. Its totient is φ = 2221068.

The previous prime is 2221061. The next prime is 2221097. The reversal of 2221069 is 9601222.

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., 1855044 + 366025 = 1362^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221069 - 2³ = 2221061 is a prime.

It is a super-2 number, since 2×2221069² = 9866295005522, which contains 22 as substring.

2221069 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110534 + 1110535.

It is an arithmetic number, because the mean of its divisors is an integer number (1110535).

2^2221069 is an apocalyptic number.

It is an amenable number.

2221069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221069 is an equidigital number, since it uses as much as digits as its factorization.

2221069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2221069 is about 1490.3251323117. The cubic root of 2221069 is about 130.4730105712.

The spelling of 2221069 in words is "two million, two hundred twenty-one thousand, sixty-nine".