1222549589438 has 16 divisors (see below), whose sum is σ = 1865534814000. Its totient is φ = 600711636672.

The previous prime is 1222549589419. The next prime is 1222549589453. The reversal of 1222549589438 is 8349859452221.

It is a super-2 number, since 2×1222549589438² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394453 + ... + 2095136.

It is an arithmetic number, because the mean of its divisors is an integer number (116595925875).

Almost surely, 2^{1222549589438} is an apocalyptic number.

1222549589438 is a deficient number, since it is larger than the sum of its proper divisors (642985224562).

1222549589438 is a wasteful number, since it uses less digits than its factorization.

1222549589438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492619.

The product of its digits is 49766400, while the sum is 62.

The spelling of 1222549589438 in words is "one trillion, two hundred twenty-two billion, five hundred forty-nine million, five hundred eighty-nine thousand, four hundred thirty-eight".