211214450 has 48 divisors (see below), whose sum is σ = 415806720. Its totient is φ = 79600320.

The previous prime is 211214401. The next prime is 211214461. The reversal of 211214450 is 54412112.

It is a happy number.

It is a super-2 number, since 2×211214450² = 89223087777605000, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 211352 + ... + 212348.

It is an arithmetic number, because the mean of its divisors is an integer number (8662640).

Almost surely, 2^211214450 is an apocalyptic number.

211214450 is a deficient number, since it is larger than the sum of its proper divisors (204592270).

211214450 is a wasteful number, since it uses less digits than its factorization.

211214450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 211214450 is about 14533.2188451148. The cubic root of 211214450 is about 595.5358024629.

Adding to 211214450 its reverse (54412112), we get a palindrome (265626562).

The spelling of 211214450 in words is "two hundred eleven million, two hundred fourteen thousand, four hundred fifty".