212021310320 has 40 divisors (see below), whose sum is σ = 514382139936. Its totient is φ = 81121196288.

The previous prime is 212021310307. The next prime is 212021310331. The reversal of 212021310320 is 23013120212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57612647 + ... + 57616326.

Almost surely, 2^212021310320 is an apocalyptic number.

212021310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021310320 is an abundant number, since it is smaller than the sum of its proper divisors (302360829616).

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

212021310320 is a wasteful number, since it uses less digits than its factorization.

212021310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115229009 (or 115229003 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021310320 its reverse (23013120212), we get a palindrome (235034430532).

The spelling of 212021310320 in words is "two hundred twelve billion, twenty-one million, three hundred ten thousand, three hundred twenty".