212190556454 has 8 divisors (see below), whose sum is σ = 318331073280. Its totient is φ = 106080198696.

The previous prime is 212190556451. The next prime is 212190556483. The reversal of 212190556454 is 454655091212.

212190556454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212190556454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212190556451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7522169 + ... + 7550324.

It is an arithmetic number, because the mean of its divisors is an integer number (39791384160).

Almost surely, 2^212190556454 is an apocalyptic number.

212190556454 is a deficient number, since it is larger than the sum of its proper divisors (106140516826).

212190556454 is a wasteful number, since it uses less digits than its factorization.

212190556454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079534.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 212190556454 in words is "two hundred twelve billion, one hundred ninety million, five hundred fifty-six thousand, four hundred fifty-four".