1214121243 has 8 divisors (see below), whose sum is σ = 1633680400. Its totient is φ = 801988128.

The previous prime is 1214121241. The next prime is 1214121277. The reversal of 1214121243 is 3421214121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1214121243 - 2¹ = 1214121241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856128 + ... + 1856781.

It is an arithmetic number, because the mean of its divisors is an integer number (204210050).

Almost surely, 2^1214121243 is an apocalyptic number.

1214121243 is a deficient number, since it is larger than the sum of its proper divisors (419559157).

1214121243 is a wasteful number, since it uses less digits than its factorization.

1214121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713021.

The product of its digits is 384, while the sum is 21.

The square root of 1214121243 is about 34844.2426090739. The cubic root of 1214121243 is about 1066.8106745783.

Adding to 1214121243 its reverse (3421214121), we get a palindrome (4635335364).

The spelling of 1214121243 in words is "one billion, two hundred fourteen million, one hundred twenty-one thousand, two hundred forty-three".