3212121231240 has 128 divisors (see below), whose sum is σ = 10420298472960. Its totient is φ = 789026668544.

The previous prime is 3212121231217. The next prime is 3212121231271. The reversal of 3212121231240 is 421321212123.

3212121231240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3212121231240.

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, 16654857 + ... + 16846616.

It is an arithmetic number, because the mean of its divisors is an integer number (81408581820).

Almost surely, 2^{3212121231240} is an apocalyptic number.

3212121231240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3212121231240 is an abundant number, since it is smaller than the sum of its proper divisors (7208177241720).

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

3212121231240 is a wasteful number, since it uses less digits than its factorization.

3212121231240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33501551 (or 33501547 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 3212121231240 its reverse (421321212123), we get a palindrome (3633442443363).

The spelling of 3212121231240 in words is "three trillion, two hundred twelve billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred forty".