211471372500 has 480 divisors, whose sum is σ = 700020921600. Its totient is φ = 49370112000.

The previous prime is 211471372499. The next prime is 211471372513. The reversal of 211471372500 is 5273174112.

It is a congruent number.

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 159 ways as a sum of consecutive naturals, for example, 108501526 + ... + 108503474.

It is an arithmetic number, because the mean of its divisors is an integer number (1458376920).

Almost surely, 2^211471372500 is an apocalyptic number.

211471372500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211471372500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350010460800).

211471372500 is an abundant number, since it is smaller than the sum of its proper divisors (488549549100).

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

211471372500 is a wasteful number, since it uses less digits than its factorization.

211471372500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 211471372500 in words is "two hundred eleven billion, four hundred seventy-one million, three hundred seventy-two thousand, five hundred".