1091919222 has 12 divisors (see below), whose sum is σ = 2365825020. Its totient is φ = 363973068.

The previous prime is 1091919217. The next prime is 1091919229. The reversal of 1091919222 is 2229191901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091919229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30331072 + ... + 30331107.

It is an arithmetic number, because the mean of its divisors is an integer number (197152085).

Almost surely, 2^1091919222 is an apocalyptic number.

1091919222 is an abundant number, since it is smaller than the sum of its proper divisors (1273905798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1091919222 is a wasteful number, since it uses less digits than its factorization.

1091919222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60662187 (or 60662184 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1091919222 is about 33044.2010343721. The cubic root of 1091919222 is about 1029.7461346886.

The spelling of 1091919222 in words is "one billion, ninety-one million, nine hundred nineteen thousand, two hundred twenty-two".