11211110222212 has 12 divisors (see below), whose sum is σ = 20652045146320. Its totient is φ = 5310525894696.

The previous prime is 11211110222201. The next prime is 11211110222251. The reversal of 11211110222212 is 21222201111211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 11211110222212.

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 in 3 ways as a sum of consecutive naturals, for example, 73757304018 + ... + 73757304169.

Almost surely, 2^{11211110222212} is an apocalyptic number.

It is an amenable number.

11211110222212 is a deficient number, since it is larger than the sum of its proper divisors (9440934924108).

11211110222212 is a wasteful number, since it uses less digits than its factorization.

11211110222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147514608210 (or 147514608208 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11211110222212 its reverse (21222201111211), we get a palindrome (32433311333423).

The spelling of 11211110222212 in words is "eleven trillion, two hundred eleven billion, one hundred ten million, two hundred twenty-two thousand, two hundred twelve".