1240221221404 has 24 divisors (see below), whose sum is σ = 2377128128256. Its totient is φ = 561490950000.

The previous prime is 1240221221341. The next prime is 1240221221431. The reversal of 1240221221404 is 4041221220421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56138052 + ... + 56160139.

It is an arithmetic number, because the mean of its divisors is an integer number (99047005344).

Almost surely, 2^{1240221221404} is an apocalyptic number.

It is an amenable number.

1240221221404 is a deficient number, since it is larger than the sum of its proper divisors (1136906906852).

1240221221404 is a wasteful number, since it uses less digits than its factorization.

1240221221404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112298457 (or 112298455 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1240221221404 its reverse (4041221220421), we get a palindrome (5281442441825).

The spelling of 1240221221404 in words is "one trillion, two hundred forty billion, two hundred twenty-one million, two hundred twenty-one thousand, four hundred four".