212011210320 has 160 divisors (see below), whose sum is σ = 808904393472. Its totient is φ = 44732030976.

The previous prime is 212011210319. The next prime is 212011210337. The reversal of 212011210320 is 23012110212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212011210320.

It is a congruent number.

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, 4831897 + ... + 4875576.

Almost surely, 2^212011210320 is an apocalyptic number.

212011210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011210320 is an abundant number, since it is smaller than the sum of its proper divisors (596893183152).

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

212011210320 is a wasteful number, since it uses less digits than its factorization.

212011210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9707509 (or 9707503 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212011210320 its reverse (23012110212), we get a palindrome (235023320532).

The spelling of 212011210320 in words is "two hundred twelve billion, eleven million, two hundred ten thousand, three hundred twenty".