1091009291922 has 24 divisors (see below), whose sum is σ = 2578749235920. Its totient is φ = 330608876280.

The previous prime is 1091009291921. The next prime is 1091009291923. The reversal of 1091009291922 is 2291929001901.

It is an interprime number because it is at equal distance from previous prime (1091009291921) and next prime (1091009291923).

It is not an unprimeable number, because it can be changed into a prime (1091009291921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2755073772 + ... + 2755074167.

It is an arithmetic number, because the mean of its divisors is an integer number (107447884830).

Almost surely, 2^{1091009291922} is an apocalyptic number.

1091009291922 is an abundant number, since it is smaller than the sum of its proper divisors (1487739943998).

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

1091009291922 is a wasteful number, since it uses less digits than its factorization.

1091009291922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510147958 (or 5510147955 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 1091009291922 in words is "one trillion, ninety-one billion, nine million, two hundred ninety-one thousand, nine hundred twenty-two".