1211441450 has 24 divisors (see below), whose sum is σ = 2301227712. Its totient is φ = 474265520.

The previous prime is 1211441419. The next prime is 1211441461. The reversal of 1211441450 is 541441121.

It is a super-3 number, since 3×1211441450³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255404 + ... + 260103.

It is an arithmetic number, because the mean of its divisors is an integer number (95884488).

Almost surely, 2^1211441450 is an apocalyptic number.

1211441450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211441450 is a deficient number, since it is larger than the sum of its proper divisors (1089786262).

1211441450 is a wasteful number, since it uses less digits than its factorization.

1211441450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515566 (or 515561 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1211441450 is about 34805.7674818413. The cubic root of 1211441450 is about 1066.0252127464.

Adding to 1211441450 its reverse (541441121), we get a palindrome (1752882571).

The spelling of 1211441450 in words is "one billion, two hundred eleven million, four hundred forty-one thousand, four hundred fifty".