11212012222102 has 4 divisors (see below), whose sum is σ = 16818018333156. Its totient is φ = 5606006111050.

The previous prime is 11212012222069. The next prime is 11212012222109. The reversal of 11212012222102 is 20122221021211.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11212012222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212012222109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803003055524 + ... + 2803003055527.

It is an arithmetic number, because the mean of its divisors is an integer number (4204504583289).

Almost surely, 2^{11212012222102} is an apocalyptic number.

11212012222102 is a deficient number, since it is larger than the sum of its proper divisors (5606006111054).

11212012222102 is an equidigital number, since it uses as much as digits as its factorization.

11212012222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606006111053.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11212012222102 its reverse (20122221021211), we get a palindrome (31334233243313).

The spelling of 11212012222102 in words is "eleven trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, one hundred two".