222111202010002 has 4 divisors (see below), whose sum is σ = 333166803015006. Its totient is φ = 111055601005000.

The previous prime is 222111202009987. The next prime is 222111202010003. The reversal of 222111202010002 is 200010202111222.

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., 215778736769281 + 6332465240721 = 14689409^2 + 2516439^2 .

It is not an unprimeable number, because it can be changed into a prime (222111202010003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55527800502499 + ... + 55527800502502.

Almost surely, 2^{222111202010002} is an apocalyptic number.

222111202010002 is a deficient number, since it is larger than the sum of its proper divisors (111055601005004).

222111202010002 is a wasteful number, since it uses less digits than its factorization.

222111202010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111055601005003.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111202010002 its reverse (200010202111222), we get a palindrome (422121404121224).

The spelling of 222111202010002 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred two million, ten thousand, two".