211214424 has 32 divisors (see below), whose sum is σ = 546246000. Its totient is φ = 67976832.

The previous prime is 211214401. The next prime is 211214461. The reversal of 211214424 is 424412112.

It is a super-2 number, since 2×211214424² = 89223065811303552, which contains 22 as substring.

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 211214424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151039 + ... + 152430.

Almost surely, 2^211214424 is an apocalyptic number.

211214424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211214424 is an abundant number, since it is smaller than the sum of its proper divisors (335031576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211214424 is a wasteful number, since it uses less digits than its factorization.

211214424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303507 (or 303503 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 211214424 is about 14533.2179506123. The cubic root of 211214424 is about 595.5357780265.

Adding to 211214424 its reverse (424412112), we get a palindrome (635626536).

The spelling of 211214424 in words is "two hundred eleven million, two hundred fourteen thousand, four hundred twenty-four".