213212121202000 has 80 divisors (see below), whose sum is σ = 515550368503872. Its totient is φ = 85284276201600.

The previous prime is 213212121201931. The next prime is 213212121202013. The reversal of 213212121202000 is 202121212312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423034147 + ... + 423537853.

Almost surely, 2^{213212121202000} is an apocalyptic number.

213212121202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213212121202000 is an abundant number, since it is smaller than the sum of its proper divisors (302338247301872).

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

213212121202000 is a wasteful number, since it uses less digits than its factorization.

213212121202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715373 (or 715357 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 213212121202000 its reverse (202121212312), we get a palindrome (213414242414312).

The spelling of 213212121202000 in words is "two hundred thirteen trillion, two hundred twelve billion, one hundred twenty-one million, two hundred two thousand".