11211221222102 has 8 divisors (see below), whose sum is σ = 18345634727112. Its totient is φ = 5096009646400.

The previous prime is 11211221222101. The next prime is 11211221222129. The reversal of 11211221222102 is 20122212211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211221222101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254800482299 + ... + 254800482342.

It is an arithmetic number, because the mean of its divisors is an integer number (2293204340889).

Almost surely, 2^{11211221222102} is an apocalyptic number.

11211221222102 is a deficient number, since it is larger than the sum of its proper divisors (7134413505010).

11211221222102 is a wasteful number, since it uses less digits than its factorization.

11211221222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509600964654.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11211221222102 its reverse (20122212211211), we get a palindrome (31333433433313).

The spelling of 11211221222102 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred two".