1401212044443 has 16 divisors (see below), whose sum is σ = 1913888202912. Its totient is φ = 911339520000.

The previous prime is 1401212044429. The next prime is 1401212044483. The reversal of 1401212044443 is 3444402121041.

It is a happy number.

It is not a de Polignac number, because 1401212044443 - 2¹³ = 1401212036251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401212044443.

It is not an unprimeable number, because it can be changed into a prime (1401212044483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9550843 + ... + 9696443.

It is an arithmetic number, because the mean of its divisors is an integer number (119618012682).

Almost surely, 2^{1401212044443} is an apocalyptic number.

1401212044443 is a deficient number, since it is larger than the sum of its proper divisors (512676158469).

1401212044443 is a wasteful number, since it uses less digits than its factorization.

1401212044443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223886.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1401212044443 its reverse (3444402121041), we get a palindrome (4845614165484).

The spelling of 1401212044443 in words is "one trillion, four hundred one billion, two hundred twelve million, forty-four thousand, four hundred forty-three".