211420020422 has 24 divisors (see below), whose sum is σ = 352682290656. Its totient is φ = 94941209376.

The previous prime is 211420020419. The next prime is 211420020451. The reversal of 211420020422 is 224020024112.

It is a junction number, because it is equal to n+sod(n) for n = 211420020394 and 211420020403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8440238 + ... + 8465249.

It is an arithmetic number, because the mean of its divisors is an integer number (14695095444).

Almost surely, 2^211420020422 is an apocalyptic number.

211420020422 is a deficient number, since it is larger than the sum of its proper divisors (141262270234).

211420020422 is a wasteful number, since it uses less digits than its factorization.

211420020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16905552 (or 16905539 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 211420020422 its reverse (224020024112), we get a palindrome (435440044534).

The spelling of 211420020422 in words is "two hundred eleven billion, four hundred twenty million, twenty thousand, four hundred twenty-two".