121200101200102 has 4 divisors (see below), whose sum is σ = 181800151800156. Its totient is φ = 60600050600050.

The previous prime is 121200101200051. The next prime is 121200101200109. The reversal of 121200101200102 is 201002101002121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200101200109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300025300024 + ... + 30300025300027.

It is an arithmetic number, because the mean of its divisors is an integer number (45450037950039).

Almost surely, 2^{121200101200102} is an apocalyptic number.

121200101200102 is a deficient number, since it is larger than the sum of its proper divisors (60600050600054).

121200101200102 is an equidigital number, since it uses as much as digits as its factorization.

121200101200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60600050600053.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121200101200102 its reverse (201002101002121), we get a palindrome (322202202202223).

The spelling of 121200101200102 in words is "one hundred twenty-one trillion, two hundred billion, one hundred one million, two hundred thousand, one hundred two".