212506213453400 has 48 divisors (see below), whose sum is σ = 494082608876640. Its totient is φ = 85001511171200.

The previous prime is 212506213453379. The next prime is 212506213453427. The reversal of 212506213453400 is 4354312605212.

212506213453400 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 11 ways as a sum of consecutive naturals, for example, 11532530 + ... + 23622270.

It is an arithmetic number, because the mean of its divisors is an integer number (10293387684930).

Almost surely, 2^{212506213453400} is an apocalyptic number.

212506213453400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212506213453400 is an abundant number, since it is smaller than the sum of its proper divisors (281576395423240).

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

212506213453400 is a wasteful number, since it uses less digits than its factorization.

212506213453400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12177644 (or 12177635 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 212506213453400 in words is "two hundred twelve trillion, five hundred six billion, two hundred thirteen million, four hundred fifty-three thousand, four hundred".