211245129655472 has 20 divisors (see below), whose sum is σ = 446495387681256. Its totient is φ = 96020513479680.

The previous prime is 211245129655457. The next prime is 211245129655513. The reversal of 211245129655472 is 274556921542112.

It is an unprimeable number.

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, 600128209073 + ... + 600128209424.

Almost surely, 2^{211245129655472} is an apocalyptic number.

211245129655472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211245129655472 is an abundant number, since it is smaller than the sum of its proper divisors (235250258025784).

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

211245129655472 is a wasteful number, since it uses less digits than its factorization.

211245129655472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200256418516 (or 1200256418510 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 56.

The spelling of 211245129655472 in words is "two hundred eleven trillion, two hundred forty-five billion, one hundred twenty-nine million, six hundred fifty-five thousand, four hundred seventy-two".