11211111012202 has 4 divisors (see below), whose sum is σ = 16816666518306. Its totient is φ = 5605555506100.

The previous prime is 11211111012197. The next prime is 11211111012301. The reversal of 11211111012202 is 20221011111211.

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., 7861804739881 + 3349306272321 = 2803891^2 + 1830111^2 .

It is an unprimeable number.

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, 2802777753049 + ... + 2802777753052.

Almost surely, 2^{11211111012202} is an apocalyptic number.

11211111012202 is a deficient number, since it is larger than the sum of its proper divisors (5605555506104).

11211111012202 is an equidigital number, since it uses as much as digits as its factorization.

11211111012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605555506103.

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

Adding to 11211111012202 its reverse (20221011111211), we get a palindrome (31432122123413).

Subtracting 11211111012202 from its reverse (20221011111211), we obtain a palindrome (9009900099009).

The spelling of 11211111012202 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, twelve thousand, two hundred two".