20222111222002 has 4 divisors (see below), whose sum is σ = 30333166833006. Its totient is φ = 10111055611000.

The previous prime is 20222111221979. The next prime is 20222111222009. The reversal of 20222111222002 is 20022211122202.

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., 17455341405681 + 2766769816321 = 4177959^2 + 1663361^2 .

It is not an unprimeable number, because it can be changed into a prime (20222111222009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055527805499 + ... + 5055527805502.

Almost surely, 2^{20222111222002} is an apocalyptic number.

20222111222002 is a deficient number, since it is larger than the sum of its proper divisors (10111055611004).

20222111222002 is a wasteful number, since it uses less digits than its factorization.

20222111222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111055611003.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20222111222002 its reverse (20022211122202), we get a palindrome (40244322344204).

It can be divided in two parts, 2022211122200 and 2, that added together give a palindrome (2022211122202).

The spelling of 20222111222002 in words is "twenty trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, two".