121302220102 has 64 divisors (see below), whose sum is σ = 219266777088. Its totient is φ = 49233600000.

The previous prime is 121302220063. The next prime is 121302220141. The reversal of 121302220102 is 201022203121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121302220063) and next prime (121302220141).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9217227 + ... + 9230377.

It is an arithmetic number, because the mean of its divisors is an integer number (3426043392).

Almost surely, 2^121302220102 is an apocalyptic number.

121302220102 is a deficient number, since it is larger than the sum of its proper divisors (97964556986).

121302220102 is a wasteful number, since it uses less digits than its factorization.

121302220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13645.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121302220102 its reverse (201022203121), we get a palindrome (322324423223).

The spelling of 121302220102 in words is "one hundred twenty-one billion, three hundred two million, two hundred twenty thousand, one hundred two".