212341404043220 has 24 divisors (see below), whose sum is σ = 447526756980744. Its totient is φ = 84629931428736.

The previous prime is 212341404043189. The next prime is 212341404043231. The reversal of 212341404043220 is 22340404143212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 731664679876 + 211609739363344 = 855374^2 + 14546812^2 .

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, 19164381107 + ... + 19164392186.

It is an arithmetic number, because the mean of its divisors is an integer number (18646948207531).

Almost surely, 2^{212341404043220} is an apocalyptic number.

212341404043220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212341404043220 is an abundant number, since it is smaller than the sum of its proper divisors (235185352937524).

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

212341404043220 is a wasteful number, since it uses less digits than its factorization.

212341404043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38328773579 (or 38328773577 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 212341404043220 its reverse (22340404143212), we get a palindrome (234681808186432).

The spelling of 212341404043220 in words is "two hundred twelve trillion, three hundred forty-one billion, four hundred four million, forty-three thousand, two hundred twenty".