1214221250 has 80 divisors (see below), whose sum is σ = 2500074720. Its totient is φ = 438480000.

The previous prime is 1214221241. The next prime is 1214221259. The reversal of 1214221250 is 521224121.

It is an interprime number because it is at equal distance from previous prime (1214221241) and next prime (1214221259).

It is not an unprimeable number, because it can be changed into a prime (1214221259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3203561 + ... + 3203939.

It is an arithmetic number, because the mean of its divisors is an integer number (31250934).

Almost surely, 2^1214221250 is an apocalyptic number.

1214221250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214221250 is an abundant number, since it is smaller than the sum of its proper divisors (1285853470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1214221250 is a wasteful number, since it uses less digits than its factorization.

1214221250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 630 counting only the distinct ones).

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

The square root of 1214221250 is about 34845.6776372623. The cubic root of 1214221250 is about 1066.8399647903.

Adding to 1214221250 its reverse (521224121), we get a palindrome (1735445371).

The spelling of 1214221250 in words is "one billion, two hundred fourteen million, two hundred twenty-one thousand, two hundred fifty".