211320020422 has 32 divisors (see below), whose sum is σ = 389111616000. Its totient is φ = 85799100744.

The previous prime is 211320020419. The next prime is 211320020447. The reversal of 211320020422 is 224020023112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 211320020422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8093458 + ... + 8119525.

It is an arithmetic number, because the mean of its divisors is an integer number (12159738000).

Almost surely, 2^211320020422 is an apocalyptic number.

211320020422 is a deficient number, since it is larger than the sum of its proper divisors (177791595578).

211320020422 is a wasteful number, since it uses less digits than its factorization.

211320020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16213025 (or 16213011 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 211320020422 its reverse (224020023112), we get a palindrome (435340043534).

The spelling of 211320020422 in words is "two hundred eleven billion, three hundred twenty million, twenty thousand, four hundred twenty-two".