211421401432 has 16 divisors (see below), whose sum is σ = 396517433760. Its totient is φ = 105683419104.

The previous prime is 211421401423. The next prime is 211421401463. The reversal of 211421401432 is 234104124112.

It is a junction number, because it is equal to n+sod(n) for n = 211421401397 and 211421401406.

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 3 ways as a sum of consecutive naturals, for example, 3377248 + ... + 3439279.

It is an arithmetic number, because the mean of its divisors is an integer number (24782339610).

Almost surely, 2^211421401432 is an apocalyptic number.

It is an amenable number.

211421401432 is a deficient number, since it is larger than the sum of its proper divisors (185096032328).

211421401432 is a wasteful number, since it uses less digits than its factorization.

211421401432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820410 (or 6820406 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 211421401432 its reverse (234104124112), we get a palindrome (445525525544).

The spelling of 211421401432 in words is "two hundred eleven billion, four hundred twenty-one million, four hundred one thousand, four hundred thirty-two".