121212101222102 has 48 divisors (see below), whose sum is σ = 204562560416256. Its totient is φ = 53802418441200.

The previous prime is 121212101222101. The next prime is 121212101222141. The reversal of 121212101222102 is 201222101212121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212101222101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6989474 + ... + 17066837.

It is an arithmetic number, because the mean of its divisors is an integer number (4261720008672).

Almost surely, 2^{121212101222102} is an apocalyptic number.

121212101222102 is a deficient number, since it is larger than the sum of its proper divisors (83350459194154).

121212101222102 is a wasteful number, since it uses less digits than its factorization.

121212101222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24056825 (or 24056814 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121212101222102 its reverse (201222101212121), we get a palindrome (322434202434223).

The spelling of 121212101222102 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred two".