1212220234142 has 8 divisors (see below), whose sum is σ = 1818486855432. Its totient is φ = 606057949000.

The previous prime is 1212220234097. The next prime is 1212220234279. The reversal of 1212220234142 is 2414320222121.

It is a happy number.

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

It is a congruent 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, 26054984 + ... + 26101467.

It is an arithmetic number, because the mean of its divisors is an integer number (227310856929).

Almost surely, 2^{1212220234142} is an apocalyptic number.

1212220234142 is a deficient number, since it is larger than the sum of its proper divisors (606266621290).

1212220234142 is a wasteful number, since it uses less digits than its factorization.

1212220234142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52168074.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1212220234142 its reverse (2414320222121), we get a palindrome (3626540456263).

The spelling of 1212220234142 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred thirty-four thousand, one hundred forty-two".