1214333220 has 24 divisors (see below), whose sum is σ = 3400133184. Its totient is φ = 323822176.

The previous prime is 1214333167. The next prime is 1214333227. The reversal of 1214333220 is 223334121.

It is not an unprimeable number, because it can be changed into a prime (1214333227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10119384 + ... + 10119503.

It is an arithmetic number, because the mean of its divisors is an integer number (141672216).

Almost surely, 2^1214333220 is an apocalyptic number.

1214333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214333220 is an abundant number, since it is smaller than the sum of its proper divisors (2185799964).

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

1214333220 is a wasteful number, since it uses less digits than its factorization.

1214333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20238899 (or 20238897 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1214333220 is about 34847.2842557351. The cubic root of 1214333220 is about 1066.8727568368.

Adding to 1214333220 its reverse (223334121), we get a palindrome (1437667341).

Subtracting from 1214333220 its reverse (223334121), we obtain a palindrome (990999099).

The spelling of 1214333220 in words is "one billion, two hundred fourteen million, three hundred thirty-three thousand, two hundred twenty".