211310221424 has 10 divisors (see below), whose sum is σ = 409413554040. Its totient is φ = 105655110704.

The previous prime is 211310221373. The next prime is 211310221433. The reversal of 211310221424 is 424122013112.

It is a self number, because there is not a number n which added to its sum of digits gives 211310221424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603444404 + ... + 6603444435.

It is an arithmetic number, because the mean of its divisors is an integer number (40941355404).

Almost surely, 2^211310221424 is an apocalyptic number.

It is an amenable number.

211310221424 is a deficient number, since it is larger than the sum of its proper divisors (198103332616).

211310221424 is a wasteful number, since it uses less digits than its factorization.

211310221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206888847 (or 13206888841 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 211310221424 its reverse (424122013112), we get a palindrome (635432234536).

The spelling of 211310221424 in words is "two hundred eleven billion, three hundred ten million, two hundred twenty-one thousand, four hundred twenty-four".