121111211422 has 8 divisors (see below), whose sum is σ = 183097264896. Its totient is φ = 60078789792.

The previous prime is 121111211413. The next prime is 121111211437. The reversal of 121111211422 is 224112111121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121111211422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238407643 + ... + 238408150.

It is an arithmetic number, because the mean of its divisors is an integer number (22887158112).

Almost surely, 2^121111211422 is an apocalyptic number.

121111211422 is a deficient number, since it is larger than the sum of its proper divisors (61986053474).

121111211422 is a wasteful number, since it uses less digits than its factorization.

121111211422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476815922.

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

Adding to 121111211422 its reverse (224112111121), we get a palindrome (345223322543).

The spelling of 121111211422 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, four hundred twenty-two".