20002210211222 has 4 divisors (see below), whose sum is σ = 30003315316836. Its totient is φ = 10001105105610.

The previous prime is 20002210211189. The next prime is 20002210211267. The reversal of 20002210211222 is 22211201220002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20002210211222.

It is a congruent number.

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, 5000552552804 + ... + 5000552552807.

It is an arithmetic number, because the mean of its divisors is an integer number (7500828829209).

Almost surely, 2^{20002210211222} is an apocalyptic number.

20002210211222 is a deficient number, since it is larger than the sum of its proper divisors (10001105105614).

20002210211222 is a wasteful number, since it uses less digits than its factorization.

20002210211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001105105613.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20002210211222 its reverse (22211201220002), we get a palindrome (42213411431224).

The spelling of 20002210211222 in words is "twenty trillion, two billion, two hundred ten million, two hundred eleven thousand, two hundred twenty-two".