121122222201112 has 16 divisors (see below), whose sum is σ = 247749999957000. Its totient is φ = 55055555545920.

The previous prime is 121122222201077. The next prime is 121122222201133. The reversal of 121122222201112 is 211102222221121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688194444237 + ... + 688194444412.

Almost surely, 2^{121122222201112} is an apocalyptic number.

It is an amenable number.

121122222201112 is an abundant number, since it is smaller than the sum of its proper divisors (126627777755888).

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

121122222201112 is a wasteful number, since it uses less digits than its factorization.

121122222201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376388888666 (or 1376388888662 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121122222201112 its reverse (211102222221121), we get a palindrome (332224444422233).

The spelling of 121122222201112 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred one thousand, one hundred twelve".