20002222212202 has 4 divisors (see below), whose sum is σ = 30003333318306. Its totient is φ = 10001111106100.

The previous prime is 20002222212191. The next prime is 20002222212233. The reversal of 20002222212202 is 20221222220002.

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., 18045835345521 + 1956386866681 = 4248039^2 + 1398709^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20002222212202.

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, 5000555553049 + ... + 5000555553052.

Almost surely, 2^{20002222212202} is an apocalyptic number.

20002222212202 is a deficient number, since it is larger than the sum of its proper divisors (10001111106104).

20002222212202 is a wasteful number, since it uses less digits than its factorization.

20002222212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001111106103.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20002222212202 its reverse (20221222220002), we get a palindrome (40223444432204).

The spelling of 20002222212202 in words is "twenty trillion, two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred two".