3213101121020 has 192 divisors, whose sum is σ = 8328866273280. Its totient is φ = 1016830983168.

The previous prime is 3213101121019. The next prime is 3213101121053. The reversal of 3213101121020 is 201211013123.

It is a self number, because there is not a number n which added to its sum of digits gives 3213101121020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185537402 + ... + 185554718.

It is an arithmetic number, because the mean of its divisors is an integer number (43379511840).

Almost surely, 2^{3213101121020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213101121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4164433136640).

3213101121020 is an abundant number, since it is smaller than the sum of its proper divisors (5115765152260).

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

3213101121020 is a wasteful number, since it uses less digits than its factorization.

3213101121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19372 (or 19370 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 3213101121020 its reverse (201211013123), we get a palindrome (3414312134143).

The spelling of 3213101121020 in words is "three trillion, two hundred thirteen billion, one hundred one million, one hundred twenty-one thousand, twenty".