211542505124 has 48 divisors (see below), whose sum is σ = 393122520000. Its totient is φ = 99258587136.

The previous prime is 211542505117. The next prime is 211542505169. The reversal of 211542505124 is 421505245112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49504652 + ... + 49508924.

It is an arithmetic number, because the mean of its divisors is an integer number (8190052500).

Almost surely, 2^211542505124 is an apocalyptic number.

It is an amenable number.

211542505124 is a deficient number, since it is larger than the sum of its proper divisors (181580014876).

211542505124 is a wasteful number, since it uses less digits than its factorization.

211542505124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6252 (or 6250 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 211542505124 in words is "two hundred eleven billion, five hundred forty-two million, five hundred five thousand, one hundred twenty-four".