22120120028 has 12 divisors (see below), whose sum is σ = 39610447800. Its totient is φ = 10802849232.

The previous prime is 22120120021. The next prime is 22120120031. The reversal of 22120120028 is 82002102122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22120119991 and 22120120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120120021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64302503 + ... + 64302846.

It is an arithmetic number, because the mean of its divisors is an integer number (3300870650).

Almost surely, 2^22120120028 is an apocalyptic number.

It is an amenable number.

22120120028 is a deficient number, since it is larger than the sum of its proper divisors (17490327772).

22120120028 is a wasteful number, since it uses less digits than its factorization.

22120120028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128605396 (or 128605394 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 22120120028 in words is "twenty-two billion, one hundred twenty million, one hundred twenty thousand, twenty-eight".