212341542120 has 80 divisors (see below), whose sum is σ = 713703527460. Its totient is φ = 56624410368.

The previous prime is 212341542109. The next prime is 212341542121. The reversal of 212341542120 is 21245143212.

212341542120 is a `hidden beast` number, since 2 + 1 + 234 + 1 + 5 + 421 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 200415591684 + 11925950436 = 447678^2 + 109206^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212341542121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32765517 + ... + 32771996.

Almost surely, 2^212341542120 is an apocalyptic number.

212341542120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212341542120 is an abundant number, since it is smaller than the sum of its proper divisors (501361985340).

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

212341542120 is a wasteful number, since it uses less digits than its factorization.

212341542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65537536 (or 65537523 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 212341542120 its reverse (21245143212), we get a palindrome (233586685332).

The spelling of 212341542120 in words is "two hundred twelve billion, three hundred forty-one million, five hundred forty-two thousand, one hundred twenty".