1181421189922 has 16 divisors (see below), whose sum is σ = 1778841525600. Its totient is φ = 588476240352.

The previous prime is 1181421189857. The next prime is 1181421189929. The reversal of 1181421189922 is 2299811241811.

It is not an unprimeable number, because it can be changed into a prime (1181421189929) 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, 508173 + ... + 1618975.

It is an arithmetic number, because the mean of its divisors is an integer number (111177595350).

Almost surely, 2^{1181421189922} is an apocalyptic number.

1181421189922 is a deficient number, since it is larger than the sum of its proper divisors (597420335678).

1181421189922 is a wasteful number, since it uses less digits than its factorization.

1181421189922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112817.

The product of its digits is 165888, while the sum is 49.

The spelling of 1181421189922 in words is "one trillion, one hundred eighty-one billion, four hundred twenty-one million, one hundred eighty-nine thousand, nine hundred twenty-two".