22120221202 has 4 divisors (see below), whose sum is σ = 33180331806. Its totient is φ = 11060110600.

The previous prime is 22120221199. The next prime is 22120221203. The reversal of 22120221202 is 20212202122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21659303241 + 460917961 = 147171^2 + 21469^2 .

It is not an unprimeable number, because it can be changed into a prime (22120221203) 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 as a sum of consecutive naturals, namely, 5530055299 + ... + 5530055302.

Almost surely, 2^22120221202 is an apocalyptic number.

22120221202 is a deficient number, since it is larger than the sum of its proper divisors (11060110604).

22120221202 is a wasteful number, since it uses less digits than its factorization.

22120221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060110603.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22120221202 its reverse (20212202122), we get a palindrome (42332423324).

The spelling of 22120221202 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred two".