222111002100202 has 4 divisors (see below), whose sum is σ = 333166503150306. Its totient is φ = 111055501050100.

The previous prime is 222111002100187. The next prime is 222111002100203. The reversal of 222111002100202 is 202001200111222.

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., 156100560748441 + 66010441351761 = 12494021^2 + 8124681^2 .

It is not an unprimeable number, because it can be changed into a prime (222111002100203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55527750525049 + ... + 55527750525052.

Almost surely, 2^{222111002100202} is an apocalyptic number.

222111002100202 is a deficient number, since it is larger than the sum of its proper divisors (111055501050104).

222111002100202 is a wasteful number, since it uses less digits than its factorization.

222111002100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111055501050103.

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

Adding to 222111002100202 its reverse (202001200111222), we get a palindrome (424112202211424).

The spelling of 222111002100202 in words is "two hundred twenty-two trillion, one hundred eleven billion, two million, one hundred thousand, two hundred two".