1240221342242 has 16 divisors (see below), whose sum is σ = 1941264919872. Its totient is φ = 593134394160.

The previous prime is 1240221342223. The next prime is 1240221342247. The reversal of 1240221342242 is 2422431220421.

It is not an unprimeable number, because it can be changed into a prime (1240221342247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628768 + ... + 2265684.

It is an arithmetic number, because the mean of its divisors is an integer number (121329057492).

Almost surely, 2^{1240221342242} is an apocalyptic number.

1240221342242 is a deficient number, since it is larger than the sum of its proper divisors (701043577630).

1240221342242 is a wasteful number, since it uses less digits than its factorization.

1240221342242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679273.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1240221342242 its reverse (2422431220421), we get a palindrome (3662652562663).

The spelling of 1240221342242 in words is "one trillion, two hundred forty billion, two hundred twenty-one million, three hundred forty-two thousand, two hundred forty-two".