1210121131332 has 12 divisors (see below), whose sum is σ = 2823615973136. Its totient is φ = 403373710440.

The previous prime is 1210121131309. The next prime is 1210121131333. The reversal of 1210121131332 is 2331311210121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210121131299 and 1210121131308.

It is not an unprimeable number, because it can be changed into a prime (1210121131333) 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 3 ways as a sum of consecutive naturals, for example, 50421713794 + ... + 50421713817.

Almost surely, 2^{1210121131332} is an apocalyptic number.

1210121131332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210121131332 is an abundant number, since it is smaller than the sum of its proper divisors (1613494841804).

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

1210121131332 is a wasteful number, since it uses less digits than its factorization.

1210121131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100843427618 (or 100843427616 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1210121131332 its reverse (2331311210121), we get a palindrome (3541432341453).

The spelling of 1210121131332 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred thirty-two".