212250231520 has 48 divisors (see below), whose sum is σ = 501471090288. Its totient is φ = 84895027200.

The previous prime is 212250231517. The next prime is 212250231521. The reversal of 212250231520 is 25132052212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212250231521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827995 + ... + 3883045.

It is an arithmetic number, because the mean of its divisors is an integer number (10447314381).

Almost surely, 2^212250231520 is an apocalyptic number.

212250231520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212250231520 is an abundant number, since it is smaller than the sum of its proper divisors (289220858768).

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

212250231520 is a wasteful number, since it uses less digits than its factorization.

212250231520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79163 (or 79155 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 212250231520 its reverse (25132052212), we get a palindrome (237382283732).

The spelling of 212250231520 in words is "two hundred twelve billion, two hundred fifty million, two hundred thirty-one thousand, five hundred twenty".