121021302130 has 32 divisors (see below), whose sum is σ = 220862283264. Its totient is φ = 47740064256.

The previous prime is 121021302119. The next prime is 121021302131. The reversal of 121021302130 is 31203120121.

It is not an unprimeable number, because it can be changed into a prime (121021302131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54079 + ... + 494941.

It is an arithmetic number, because the mean of its divisors is an integer number (6901946352).

Almost surely, 2^121021302130 is an apocalyptic number.

121021302130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021302130 is a deficient number, since it is larger than the sum of its proper divisors (99840981134).

121021302130 is a wasteful number, since it uses less digits than its factorization.

121021302130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441250.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121021302130 its reverse (31203120121), we get a palindrome (152224422251).

The spelling of 121021302130 in words is "one hundred twenty-one billion, twenty-one million, three hundred two thousand, one hundred thirty".