1222241639 has 8 divisors (see below), whose sum is σ = 1318556880. Its totient is φ = 1128639616.

The previous prime is 1222241599. The next prime is 1222241651. The reversal of 1222241639 is 9361422221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222241639 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 (1222240639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677369 + ... + 679170.

It is an arithmetic number, because the mean of its divisors is an integer number (164819610).

Almost surely, 2^1222241639 is an apocalyptic number.

1222241639 is a deficient number, since it is larger than the sum of its proper divisors (96315241).

1222241639 is a wasteful number, since it uses less digits than its factorization.

1222241639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356609.

The product of its digits is 10368, while the sum is 32.

The square root of 1222241639 is about 34960.5726354704. The cubic root of 1222241639 is about 1069.1837717851.

The spelling of 1222241639 in words is "one billion, two hundred twenty-two million, two hundred forty-one thousand, six hundred thirty-nine".