1214222450 has 72 divisors (see below), whose sum is σ = 2781816372. Its totient is φ = 391802880.

The previous prime is 1214222447. The next prime is 1214222459. The reversal of 1214222450 is 542224121.

It can be written as a sum of positive squares in 6 ways, for example, as 239971081 + 974251369 = 15491^2 + 31213^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214222459) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27074 + ... + 56226.

Almost surely, 2^1214222450 is an apocalyptic number.

1214222450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214222450 is an abundant number, since it is smaller than the sum of its proper divisors (1567593922).

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

1214222450 is a wasteful number, since it uses less digits than its factorization.

1214222450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29196 (or 29184 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1214222450 is about 34845.6948560364. The cubic root of 1214222450 is about 1066.8403162385.

Adding to 1214222450 its reverse (542224121), we get a palindrome (1756446571).

The spelling of 1214222450 in words is "one billion, two hundred fourteen million, two hundred twenty-two thousand, four hundred fifty".