211140250000 has 105 divisors (see below), whose sum is σ = 511905771741. Its totient is φ = 84364200000.

The previous prime is 211140249997. The next prime is 211140250031. The reversal of 211140250000 is 52041112.

The square root of 211140250000 is 459500.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 184979128464 + 26161121536 = 430092^2 + 161744^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 229749541 + ... + 229750459.

Almost surely, 2^211140250000 is an apocalyptic number.

211140250000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

211140250000 is the 459500-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211140250000

211140250000 is an abundant number, since it is smaller than the sum of its proper divisors (300765521741).

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

211140250000 is an frugal number, since it uses more digits than its factorization.

211140250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Multiplying 211140250000 by its sum of digits (16), we get a square (3378244000000 = 1838000²).

211140250000 divided by its sum of digits (16) gives a square (13196265625 = 114875²).

Adding to 211140250000 its reverse (52041112), we get a palindrome (211192291112).

The spelling of 211140250000 in words is "two hundred eleven billion, one hundred forty million, two hundred fifty thousand".