211201450 has 48 divisors (see below), whose sum is σ = 410330880. Its totient is φ = 80784000.

The previous prime is 211201447. The next prime is 211201453. The reversal of 211201450 is 54102112.

It is an interprime number because it is at equal distance from previous prime (211201447) and next prime (211201453).

It is not an unprimeable number, because it can be changed into a prime (211201453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137185 + ... + 138715.

It is an arithmetic number, because the mean of its divisors is an integer number (8548560).

Almost surely, 2^211201450 is an apocalyptic number.

211201450 is a deficient number, since it is larger than the sum of its proper divisors (199129430).

211201450 is a wasteful number, since it uses less digits than its factorization.

211201450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 211201450 is about 14532.7715870029. The cubic root of 211201450 is about 595.5235840370.

Adding to 211201450 its reverse (54102112), we get a palindrome (265303562).

The spelling of 211201450 in words is "two hundred eleven million, two hundred one thousand, four hundred fifty".