1210220342 has 4 divisors (see below), whose sum is σ = 1815330516. Its totient is φ = 605110170.

The previous prime is 1210220321. The next prime is 1210220359. The reversal of 1210220342 is 2430220121.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1210220342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302555084 + ... + 302555087.

It is an arithmetic number, because the mean of its divisors is an integer number (453832629).

Almost surely, 2^1210220342 is an apocalyptic number.

1210220342 is a deficient number, since it is larger than the sum of its proper divisors (605110174).

1210220342 is an equidigital number, since it uses as much as digits as its factorization.

1210220342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605110173.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1210220342 is about 34788.2213112427. The cubic root of 1210220342 is about 1065.6669151901. Note that the first 3 decimals are identical.

Adding to 1210220342 its reverse (2430220121), we get a palindrome (3640440463).

The spelling of 1210220342 in words is "one billion, two hundred ten million, two hundred twenty thousand, three hundred forty-two".