1331242224402 has 16 divisors (see below), whose sum is σ = 2665381613760. Its totient is φ = 443264547312.

The previous prime is 1331242224401. The next prime is 1331242224413. The reversal of 1331242224402 is 2044222421331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331242224402.

It is not an unprimeable number, because it can be changed into a prime (1331242224401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120709233 + ... + 120720260.

It is an arithmetic number, because the mean of its divisors is an integer number (166586350860).

Almost surely, 2^{1331242224402} is an apocalyptic number.

1331242224402 is an abundant number, since it is smaller than the sum of its proper divisors (1334139389358).

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

1331242224402 is a wasteful number, since it uses less digits than its factorization.

1331242224402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241430417.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1331242224402 its reverse (2044222421331), we get a palindrome (3375464645733).

The spelling of 1331242224402 in words is "one trillion, three hundred thirty-one billion, two hundred forty-two million, two hundred twenty-four thousand, four hundred two".