22120065502 has 4 divisors (see below), whose sum is σ = 33180098256. Its totient is φ = 11060032750.

The previous prime is 22120065467. The next prime is 22120065503. The reversal of 22120065502 is 20556002122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20556002122 = 2 ⋅10278001061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120065503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530016374 + ... + 5530016377.

It is an arithmetic number, because the mean of its divisors is an integer number (8295024564).

Almost surely, 2^22120065502 is an apocalyptic number.

22120065502 is a deficient number, since it is larger than the sum of its proper divisors (11060032754).

22120065502 is a wasteful number, since it uses less digits than its factorization.

22120065502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060032753.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22120065502 its reverse (20556002122), we get a palindrome (42676067624).

The spelling of 22120065502 in words is "twenty-two billion, one hundred twenty million, sixty-five thousand, five hundred two".