20222220002 has 4 divisors (see below), whose sum is σ = 30333330006. Its totient is φ = 10111110000.

The previous prime is 20222219971. The next prime is 20222220059. The reversal of 20222220002 is 20002222202.

It is a happy number.

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., 20204063881 + 18156121 = 142141^2 + 4261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055554999 + ... + 5055555002.

Almost surely, 2^20222220002 is an apocalyptic number.

20222220002 is a deficient number, since it is larger than the sum of its proper divisors (10111110004).

20222220002 is a wasteful number, since it uses less digits than its factorization.

20222220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111110003.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20222220002 its reverse (20002222202), we get a palindrome (40224442204).

The spelling of 20222220002 in words is "twenty billion, two hundred twenty-two million, two hundred twenty thousand, two".