1212201143 has 8 divisors (see below), whose sum is σ = 1225577808. Its totient is φ = 1198842624.

The previous prime is 1212201127. The next prime is 1212201163. The reversal of 1212201143 is 3411022121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212201143 - 2⁴ = 1212201127 is a prime.

It is a super-2 number, since 2×1212201143² = 2938863222181012898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212201103) 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, 163505 + ... + 170757.

It is an arithmetic number, because the mean of its divisors is an integer number (153197226).

Almost surely, 2^1212201143 is an apocalyptic number.

1212201143 is a deficient number, since it is larger than the sum of its proper divisors (13376665).

1212201143 is an equidigital number, since it uses as much as digits as its factorization.

1212201143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9073.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1212201143 is about 34816.6790920674. The cubic root of 1212201143 is about 1066.2480004196.

Adding to 1212201143 its reverse (3411022121), we get a palindrome (4623223264).

The spelling of 1212201143 in words is "one billion, two hundred twelve million, two hundred one thousand, one hundred forty-three".