20000222220002 has 4 divisors (see below), whose sum is σ = 30000333330006. Its totient is φ = 10000111110000.

The previous prime is 20000222219951. The next prime is 20000222220031. The reversal of 20000222220002 is 20002222200002.

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., 15499803646441 + 4500418573561 = 3936979^2 + 2121419^2 .

It is an unprimeable number.

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, 5000055554999 + ... + 5000055555002.

Almost surely, 2^{20000222220002} is an apocalyptic number.

20000222220002 is a deficient number, since it is larger than the sum of its proper divisors (10000111110004).

20000222220002 is a wasteful number, since it uses less digits than its factorization.

20000222220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000111110003.

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

Adding to 20000222220002 its reverse (20002222200002), we get a palindrome (40002444420004).

The spelling of 20000222220002 in words is "twenty trillion, two hundred twenty-two million, two hundred twenty thousand, two".