121222021111102 has 8 divisors (see below), whose sum is σ = 181833270035112. Its totient is φ = 60610931099400.

The previous prime is 121222021111039. The next prime is 121222021111109. The reversal of 121222021111102 is 201111120222121.

It is a happy number.

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 121222021111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222021111109) by changing a digit.

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, 37802349 + ... + 40883512.

It is an arithmetic number, because the mean of its divisors is an integer number (22729158754389).

Almost surely, 2^{121222021111102} is an apocalyptic number.

121222021111102 is a deficient number, since it is larger than the sum of its proper divisors (60611248924010).

121222021111102 is an equidigital number, since it uses as much as digits as its factorization.

121222021111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79456154.

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

Adding to 121222021111102 its reverse (201111120222121), we get a palindrome (322333141333223).

The spelling of 121222021111102 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twenty-one million, one hundred eleven thousand, one hundred two".