1210001442 has 16 divisors (see below), whose sum is σ = 2606157120. Its totient is φ = 372308112.

The previous prime is 1210001431. The next prime is 1210001447. The reversal of 1210001442 is 2441000121.

It is not an unprimeable number, because it can be changed into a prime (1210001447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7756342 + ... + 7756497.

It is an arithmetic number, because the mean of its divisors is an integer number (162884820).

Almost surely, 2^1210001442 is an apocalyptic number.

1210001442 is an abundant number, since it is smaller than the sum of its proper divisors (1396155678).

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

1210001442 is a wasteful number, since it uses less digits than its factorization.

1210001442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15512857.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1210001442 is about 34785.0749891387. The cubic root of 1210001442 is about 1065.6026600718.

Adding to 1210001442 its reverse (2441000121), we get a palindrome (3651001563).

The spelling of 1210001442 in words is "one billion, two hundred ten million, one thousand, four hundred forty-two".