211122315430 has 24 divisors (see below), whose sum is σ = 411501131712. Its totient is φ = 77952854304.

The previous prime is 211122315421. The next prime is 211122315433. The reversal of 211122315430 is 34513221112.

It is a junction number, because it is equal to n+sod(n) for n = 211122315395 and 211122315404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122315433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62460534 + ... + 62463913.

It is an arithmetic number, because the mean of its divisors is an integer number (17145880488).

Almost surely, 2^211122315430 is an apocalyptic number.

211122315430 is a deficient number, since it is larger than the sum of its proper divisors (200378816282).

211122315430 is a wasteful number, since it uses less digits than its factorization.

211122315430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124924480 (or 124924467 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 211122315430 its reverse (34513221112), we get a palindrome (245635536542).

The spelling of 211122315430 in words is "two hundred eleven billion, one hundred twenty-two million, three hundred fifteen thousand, four hundred thirty".