212054064440 has 32 divisors (see below), whose sum is σ = 477777998880. Its totient is φ = 84704940672.

The previous prime is 212054064403. The next prime is 212054064511. The reversal of 212054064440 is 44460450212.

212054064440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212054064397 and 212054064406.

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, 3616967 + ... + 3675126.

It is an arithmetic number, because the mean of its divisors is an integer number (14930562465).

Almost surely, 2^212054064440 is an apocalyptic number.

212054064440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212054064440 is an abundant number, since it is smaller than the sum of its proper divisors (265723934440).

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

212054064440 is a wasteful number, since it uses less digits than its factorization.

212054064440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292831 (or 7292827 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 212054064440 in words is "two hundred twelve billion, fifty-four million, sixty-four thousand, four hundred forty".