211421042344 has 32 divisors (see below), whose sum is σ = 413026387200. Its totient is φ = 101344412160.

The previous prime is 211421042299. The next prime is 211421042369. The reversal of 211421042344 is 443240124112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3957129 + ... + 4010200.

It is an arithmetic number, because the mean of its divisors is an integer number (12907074600).

Almost surely, 2^211421042344 is an apocalyptic number.

It is an amenable number.

211421042344 is a deficient number, since it is larger than the sum of its proper divisors (201605344856).

211421042344 is a wasteful number, since it uses less digits than its factorization.

211421042344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967473 (or 7967469 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 211421042344 its reverse (443240124112), we get a palindrome (654661166456).

The spelling of 211421042344 in words is "two hundred eleven billion, four hundred twenty-one million, forty-two thousand, three hundred forty-four".