1210021331332 has 144 divisors (see below), whose sum is σ = 2538850406400. Its totient is φ = 502304932800.

The previous prime is 1210021331317. The next prime is 1210021331333. The reversal of 1210021331332 is 2331331200121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1210021331333) 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 47 ways as a sum of consecutive naturals, for example, 74966919 + ... + 74983057.

It is an arithmetic number, because the mean of its divisors is an integer number (17630905600).

Almost surely, 2^{1210021331332} is an apocalyptic number.

It is an amenable number.

1210021331332 is an abundant number, since it is smaller than the sum of its proper divisors (1328829075068).

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

1210021331332 is a wasteful number, since it uses less digits than its factorization.

1210021331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16478 (or 16465 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1210021331332 its reverse (2331331200121), we get a palindrome (3541352531453).

The spelling of 1210021331332 in words is "one trillion, two hundred ten billion, twenty-one million, three hundred thirty-one thousand, three hundred thirty-two".