121102021111102 has 16 divisors (see below), whose sum is σ = 181865188414080. Its totient is φ = 60480292927392.

The previous prime is 121102021111081. The next prime is 121102021111117. The reversal of 121102021111102 is 201111120201121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240195508 + ... + 240699160.

It is an arithmetic number, because the mean of its divisors is an integer number (11366574275880).

Almost surely, 2^{121102021111102} is an apocalyptic number.

121102021111102 is a deficient number, since it is larger than the sum of its proper divisors (60763167302978).

121102021111102 is a wasteful number, since it uses less digits than its factorization.

121102021111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643827.

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

Adding to 121102021111102 its reverse (201111120201121), we get a palindrome (322213141312223).

The spelling of 121102021111102 in words is "one hundred twenty-one trillion, one hundred two billion, twenty-one million, one hundred eleven thousand, one hundred two".