121111121102 has 8 divisors (see below), whose sum is σ = 181679143800. Its totient is φ = 60551406504.

The previous prime is 121111121101. The next prime is 121111121107. The reversal of 121111121102 is 201121111121.

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 (121111121101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040452 + ... + 2098967.

It is an arithmetic number, because the mean of its divisors is an integer number (22709892975).

Almost surely, 2^121111121102 is an apocalyptic number.

121111121102 is a deficient number, since it is larger than the sum of its proper divisors (60568022698).

121111121102 is a wasteful number, since it uses less digits than its factorization.

121111121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154050.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121111121102 its reverse (201121111121), we get a palindrome (322232232223).

The spelling of 121111121102 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred two".