211421042422 has 8 divisors (see below), whose sum is σ = 319030555536. Its totient is φ = 105077523912.

The previous prime is 211421042383. The next prime is 211421042489. The reversal of 211421042422 is 224240124112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316498233 + ... + 316498900.

It is an arithmetic number, because the mean of its divisors is an integer number (39878819442).

Almost surely, 2^211421042422 is an apocalyptic number.

211421042422 is a deficient number, since it is larger than the sum of its proper divisors (107609513114).

211421042422 is a wasteful number, since it uses less digits than its factorization.

211421042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632997302.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 211421042422 its reverse (224240124112), we get a palindrome (435661166534).

The spelling of 211421042422 in words is "two hundred eleven billion, four hundred twenty-one million, forty-two thousand, four hundred twenty-two".