121111210102102 has 8 divisors (see below), whose sum is σ = 198181980167112. Its totient is φ = 55050550046400.

The previous prime is 121111210102079. The next prime is 121111210102139. The reversal of 121111210102102 is 201201012111121.

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

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, 2752527502299 + ... + 2752527502342.

It is an arithmetic number, because the mean of its divisors is an integer number (24772747520889).

Almost surely, 2^{121111210102102} is an apocalyptic number.

121111210102102 is a deficient number, since it is larger than the sum of its proper divisors (77070770065010).

121111210102102 is a wasteful number, since it uses less digits than its factorization.

121111210102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505055004654.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121111210102102 its reverse (201201012111121), we get a palindrome (322312222213223).

The spelling of 121111210102102 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred ten million, one hundred two thousand, one hundred two".