1122189638 has 4 divisors (see below), whose sum is σ = 1683284460. Its totient is φ = 561094818.

The previous prime is 1122189589. The next prime is 1122189641. The reversal of 1122189638 is 8369812211.

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

It is a junction number, because it is equal to n+sod(n) for n = 1122189595 and 1122189604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280547408 + ... + 280547411.

It is an arithmetic number, because the mean of its divisors is an integer number (420821115).

Almost surely, 2^1122189638 is an apocalyptic number.

1122189638 is a deficient number, since it is larger than the sum of its proper divisors (561094822).

1122189638 is an equidigital number, since it uses as much as digits as its factorization.

1122189638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561094821.

The product of its digits is 41472, while the sum is 41.

The square root of 1122189638 is about 33499.0990625121. The cubic root of 1122189638 is about 1039.1751466241.

The spelling of 1122189638 in words is "one billion, one hundred twenty-two million, one hundred eighty-nine thousand, six hundred thirty-eight".