1214212005 has 32 divisors (see below), whose sum is σ = 2272214400. Its totient is φ = 613495296.

The previous prime is 1214211899. The next prime is 1214212019. The reversal of 1214212005 is 5002124121.

It is not a de Polignac number, because 1214212005 - 2²⁵ = 1180657573 is a prime.

It is a super-2 number, since 2×1214212005² = 2948621586172240050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234124 + ... + 239253.

It is an arithmetic number, because the mean of its divisors is an integer number (71006700).

Almost surely, 2^1214212005 is an apocalyptic number.

1214212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214212005 is a deficient number, since it is larger than the sum of its proper divisors (1058002395).

1214212005 is a wasteful number, since it uses less digits than its factorization.

1214212005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473410 (or 473404 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1214212005 is about 34845.5449806715. The cubic root of 1214212005 is about 1066.8372571672.

Adding to 1214212005 its reverse (5002124121), we get a palindrome (6216336126).

The spelling of 1214212005 in words is "one billion, two hundred fourteen million, two hundred twelve thousand, five".