212302100340440 has 128 divisors (see below), whose sum is σ = 552164406336000. Its totient is φ = 72653210496000.

The previous prime is 212302100340377. The next prime is 212302100340511. The reversal of 212302100340440 is 44043001203212.

212302100340440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 82827005 + ... + 85351724.

It is an arithmetic number, because the mean of its divisors is an integer number (4313784424500).

Almost surely, 2^{212302100340440} is an apocalyptic number.

212302100340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212302100340440 is an abundant number, since it is smaller than the sum of its proper divisors (339862305995560).

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

212302100340440 is a wasteful number, since it uses less digits than its factorization.

212302100340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168178921 (or 168178917 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212302100340440 its reverse (44043001203212), we get a palindrome (256345101543652).

The spelling of 212302100340440 in words is "two hundred twelve trillion, three hundred two billion, one hundred million, three hundred forty thousand, four hundred forty".