211214452 has 48 divisors (see below), whose sum is σ = 394599744. Its totient is φ = 98784000.

The previous prime is 211214401. The next prime is 211214461. The reversal of 211214452 is 254412112.

It is a super-2 number, since 2×211214452² = 89223089467320608, which contains 22 as substring.

Its product of digits (640) is a multiple of the sum of its prime factors (640).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429927 + ... + 430417.

It is an arithmetic number, because the mean of its divisors is an integer number (8220828).

Almost surely, 2^211214452 is an apocalyptic number.

It is an amenable number.

211214452 is a deficient number, since it is larger than the sum of its proper divisors (183385292).

211214452 is a wasteful number, since it uses less digits than its factorization.

211214452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 211214452 is about 14533.2189139227. The cubic root of 211214452 is about 595.5358043426.

Adding to 211214452 its reverse (254412112), we get a palindrome (465626564).

The spelling of 211214452 in words is "two hundred eleven million, two hundred fourteen thousand, four hundred fifty-two".