1214121452 has 24 divisors (see below), whose sum is σ = 2149045920. Its totient is φ = 600122880.

The previous prime is 1214121421. The next prime is 1214121457. The reversal of 1214121452 is 2541214121.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1214121457) 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, 662177 + ... + 664007.

It is an arithmetic number, because the mean of its divisors is an integer number (89543580).

Almost surely, 2^1214121452 is an apocalyptic number.

It is an amenable number.

1214121452 is a deficient number, since it is larger than the sum of its proper divisors (934924468).

1214121452 is a wasteful number, since it uses less digits than its factorization.

1214121452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641 (or 3639 counting only the distinct ones).

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

The square root of 1214121452 is about 34844.2456081345. The cubic root of 1214121452 is about 1066.8107357922.

Adding to 1214121452 its reverse (2541214121), we get a palindrome (3755335573).

The spelling of 1214121452 in words is "one billion, two hundred fourteen million, one hundred twenty-one thousand, four hundred fifty-two".