2141212442 has 4 divisors (see below), whose sum is σ = 3211818666. Its totient is φ = 1070606220.

The previous prime is 2141212433. The next prime is 2141212457. The reversal of 2141212442 is 2442121412.

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

It can be written as a sum of positive squares in only one way, i.e., 1244748961 + 896463481 = 35281^2 + 29941^2 .

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 as a sum of consecutive naturals, namely, 535303109 + ... + 535303112.

Almost surely, 2^2141212442 is an apocalyptic number.

2141212442 is a deficient number, since it is larger than the sum of its proper divisors (1070606224).

2141212442 is a wasteful number, since it uses less digits than its factorization.

2141212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070606223.

The product of its digits is 1024, while the sum is 23.

The square root of 2141212442 is about 46273.2367789417. The cubic root of 2141212442 is about 1288.9020648172.

Adding to 2141212442 its reverse (2442121412), we get a palindrome (4583333854).

The spelling of 2141212442 in words is "two billion, one hundred forty-one million, two hundred twelve thousand, four hundred forty-two".