211241399968 has 48 divisors (see below), whose sum is σ = 443150049384. Its totient is φ = 98774507520.

The previous prime is 211241399933. The next prime is 211241399969. The reversal of 211241399968 is 869993142112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210376334224 + 865065744 = 458668^2 + 29412^2 .

It is not an unprimeable number, because it can be changed into a prime (211241399969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151253 + ... + 1322068.

Almost surely, 2^211241399968 is an apocalyptic number.

It is an amenable number.

211241399968 is an abundant number, since it is smaller than the sum of its proper divisors (231908649416).

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

211241399968 is a wasteful number, since it uses less digits than its factorization.

211241399968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473505 (or 2473497 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The spelling of 211241399968 in words is "two hundred eleven billion, two hundred forty-one million, three hundred ninety-nine thousand, nine hundred sixty-eight".