1212141142 has 8 divisors (see below), whose sum is σ = 1818513000. Its totient is φ = 605970144.

The previous prime is 1212141131. The next prime is 1212141143. The reversal of 1212141142 is 2411412121.

It is a happy number.

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

It is a super-2 number, since 2×1212141142² = 2938572296258128328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212141143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34092 + ... + 59887.

It is an arithmetic number, because the mean of its divisors is an integer number (227314125).

Almost surely, 2^1212141142 is an apocalyptic number.

1212141142 is a deficient number, since it is larger than the sum of its proper divisors (606371858).

1212141142 is an equidigital number, since it uses as much as digits as its factorization.

1212141142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100430.

The product of its digits is 128, while the sum is 19.

The square root of 1212141142 is about 34815.8174110561. The cubic root of 1212141142 is about 1066.2304079041.

Adding to 1212141142 its reverse (2411412121), we get a palindrome (3623553263).

The spelling of 1212141142 in words is "one billion, two hundred twelve million, one hundred forty-one thousand, one hundred forty-two".