1212142202 has 8 divisors (see below), whose sum is σ = 1913908800. Its totient is φ = 574172604.

The previous prime is 1212142189. The next prime is 1212142219. The reversal of 1212142202 is 2022412121.

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

It is an unprimeable number.

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, 15949202 + ... + 15949277.

It is an arithmetic number, because the mean of its divisors is an integer number (239238600).

Almost surely, 2^1212142202 is an apocalyptic number.

1212142202 is a deficient number, since it is larger than the sum of its proper divisors (701766598).

1212142202 is a wasteful number, since it uses less digits than its factorization.

1212142202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31898500.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1212142202 is about 34815.8326340187. The cubic root of 1212142202 is about 1066.2307187051.

Adding to 1212142202 its reverse (2022412121), we get a palindrome (3234554323).

The spelling of 1212142202 in words is "one billion, two hundred twelve million, one hundred forty-two thousand, two hundred two".