121002231132 has 48 divisors (see below), whose sum is σ = 320384171520. Its totient is φ = 39475903536.

The previous prime is 121002231109. The next prime is 121002231137. The reversal of 121002231132 is 231132200121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002231137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11913978 + ... + 11924129.

It is an arithmetic number, because the mean of its divisors is an integer number (6674670240).

Almost surely, 2^121002231132 is an apocalyptic number.

121002231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121002231132 is an abundant number, since it is smaller than the sum of its proper divisors (199381940388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121002231132 is a wasteful number, since it uses less digits than its factorization.

121002231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23838167 (or 23838159 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121002231132 its reverse (231132200121), we get a palindrome (352134431253).

The spelling of 121002231132 in words is "one hundred twenty-one billion, two million, two hundred thirty-one thousand, one hundred thirty-two".