211422412 has 24 divisors (see below), whose sum is σ = 383317200. Its totient is φ = 101914176.

The previous prime is 211422397. The next prime is 211422413. The reversal of 211422412 is 214224112.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 211422412.

It is not an unprimeable number, because it can be changed into a prime (211422413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141823 + ... + 143305.

It is an arithmetic number, because the mean of its divisors is an integer number (15971550).

Almost surely, 2^211422412 is an apocalyptic number.

It is an amenable number.

211422412 is a deficient number, since it is larger than the sum of its proper divisors (171894788).

211422412 is a wasteful number, since it uses less digits than its factorization.

211422412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2743 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 211422412 is about 14540.3717971722. The cubic root of 211422412 is about 595.7311934372.

Adding to 211422412 its reverse (214224112), we get a palindrome (425646524).

The spelling of 211422412 in words is "two hundred eleven million, four hundred twenty-two thousand, four hundred twelve".