1212142242 has 8 divisors (see below), whose sum is σ = 2424284496. Its totient is φ = 404047412.

The previous prime is 1212142231. The next prime is 1212142301. The reversal of 1212142242 is 2422412121.

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

1212142242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101011848 + ... + 101011859.

It is an arithmetic number, because the mean of its divisors is an integer number (303035562).

Almost surely, 2^1212142242 is an apocalyptic number.

1212142242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1212142242 is a wasteful number, since it uses less digits than its factorization.

1212142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202023712.

The product of its digits is 512, while the sum is 21.

The square root of 1212142242 is about 34815.8332084700. The cubic root of 1212142242 is about 1066.2307304334.

Adding to 1212142242 its reverse (2422412121), we get a palindrome (3634554363).

The spelling of 1212142242 in words is "one billion, two hundred twelve million, one hundred forty-two thousand, two hundred forty-two".