1401212242 has 4 divisors (see below), whose sum is σ = 2101818366. Its totient is φ = 700606120.

The previous prime is 1401212221. The next prime is 1401212261. The reversal of 1401212242 is 2422121041.

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., 880961761 + 520250481 = 29681^2 + 22809^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350303059 + ... + 350303062.

Almost surely, 2^1401212242 is an apocalyptic number.

1401212242 is a deficient number, since it is larger than the sum of its proper divisors (700606124).

1401212242 is an equidigital number, since it uses as much as digits as its factorization.

1401212242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700606123.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1401212242 is about 37432.7696276939. The cubic root of 1401212242 is about 1119.0117350558.

Adding to 1401212242 its reverse (2422121041), we get a palindrome (3823333283).

The spelling of 1401212242 in words is "one billion, four hundred one million, two hundred twelve thousand, two hundred forty-two".