121012131220102 has 16 divisors (see below), whose sum is σ = 198823177056960. Its totient is φ = 54983199580288.

The previous prime is 121012131220069. The next prime is 121012131220103. The reversal of 121012131220102 is 201022131210121.

It is a self number, because there is not a number n which added to its sum of digits gives 121012131220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012131220103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61365177118 + ... + 61365179089.

It is an arithmetic number, because the mean of its divisors is an integer number (12426448566060).

Almost surely, 2^{121012131220102} is an apocalyptic number.

121012131220102 is a deficient number, since it is larger than the sum of its proper divisors (77811045836858).

121012131220102 is a wasteful number, since it uses less digits than its factorization.

121012131220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122730356255.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121012131220102 its reverse (201022131210121), we get a palindrome (322034262430223).

The spelling of 121012131220102 in words is "one hundred twenty-one trillion, twelve billion, one hundred thirty-one million, two hundred twenty thousand, one hundred two".