1222940623 has 4 divisors (see below), whose sum is σ = 1235049048. Its totient is φ = 1210832200.

The previous prime is 1222940599. The next prime is 1222940639. The reversal of 1222940623 is 3260492221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222940623 - 2⁵ = 1222940591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222940123) 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, 6054061 + ... + 6054262.

It is an arithmetic number, because the mean of its divisors is an integer number (308762262).

Almost surely, 2^1222940623 is an apocalyptic number.

1222940623 is a deficient number, since it is larger than the sum of its proper divisors (12108425).

1222940623 is a wasteful number, since it uses less digits than its factorization.

1222940623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108424.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1222940623 is about 34970.5679536378. The cubic root of 1222940623 is about 1069.3875503468.

The spelling of 1222940623 in words is "one billion, two hundred twenty-two million, nine hundred forty thousand, six hundred twenty-three".