22120000278 has 8 divisors (see below), whose sum is σ = 44240000568. Its totient is φ = 7373333424.

The previous prime is 22120000277. The next prime is 22120000291. The reversal of 22120000278 is 87200002122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22120000278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120000277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843333351 + ... + 1843333362.

It is an arithmetic number, because the mean of its divisors is an integer number (5530000071).

Almost surely, 2^22120000278 is an apocalyptic number.

22120000278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22120000278 is a wasteful number, since it uses less digits than its factorization.

22120000278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686666718.

The product of its (nonzero) digits is 896, while the sum is 24.

The spelling of 22120000278 in words is "twenty-two billion, one hundred twenty million, two hundred seventy-eight", and thus it is an aban number.