1222063961 has 4 divisors (see below), whose sum is σ = 1224703872. Its totient is φ = 1219424052.

The previous prime is 1222063951. The next prime is 1222063963. The reversal of 1222063961 is 1693602221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222063961 - 2³⁰ = 148322137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222063963) 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, 1319261 + ... + 1320186.

It is an arithmetic number, because the mean of its divisors is an integer number (306175968).

Almost surely, 2^1222063961 is an apocalyptic number.

It is an amenable number.

1222063961 is a deficient number, since it is larger than the sum of its proper divisors (2639911).

1222063961 is an equidigital number, since it uses as much as digits as its factorization.

1222063961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639910.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1222063961 is about 34958.0314234083. The cubic root of 1222063961 is about 1069.1319599790.

The spelling of 1222063961 in words is "one billion, two hundred twenty-two million, sixty-three thousand, nine hundred sixty-one".