1222761206 has 8 divisors (see below), whose sum is σ = 1835995584. Its totient is φ = 610762680.

The previous prime is 1222761203. The next prime is 1222761209. The reversal of 1222761206 is 6021672221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222761203) and next prime (1222761209).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222761203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306485 + ... + 310448.

It is an arithmetic number, because the mean of its divisors is an integer number (229499448).

Almost surely, 2^1222761206 is an apocalyptic number.

1222761206 is a deficient number, since it is larger than the sum of its proper divisors (613234378).

1222761206 is an equidigital number, since it uses as much as digits as its factorization.

1222761206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617926.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1222761206 is about 34968.0026023792. The cubic root of 1222761206 is about 1069.3352513537.

The spelling of 1222761206 in words is "one billion, two hundred twenty-two million, seven hundred sixty-one thousand, two hundred six".