11221212012102 has 48 divisors (see below), whose sum is σ = 24328112595072. Its totient is φ = 3738021955200.

The previous prime is 11221212012089. The next prime is 11221212012107. The reversal of 11221212012102 is 20121021212211.

11221212012102 is a `hidden beast` number, since 11 + 221 + 21 + 201 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221212012107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393201978 + ... + 393230514.

It is an arithmetic number, because the mean of its divisors is an integer number (506835679064).

Almost surely, 2^{11221212012102} is an apocalyptic number.

11221212012102 is an abundant number, since it is smaller than the sum of its proper divisors (13106900582970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221212012102 is a wasteful number, since it uses less digits than its factorization.

11221212012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41693 (or 41690 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11221212012102 its reverse (20121021212211), we get a palindrome (31342233224313).

The spelling of 11221212012102 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, twelve thousand, one hundred two".