1404111552021 has 48 divisors (see below), whose sum is σ = 2044994964480. Its totient is φ = 928345847040.

The previous prime is 1404111552017. The next prime is 1404111552059. The reversal of 1404111552021 is 1202551114041.

1404111552021 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 1 + 115 + 520 + 21 = 666.

It is not a de Polignac number, because 1404111552021 - 2² = 1404111552017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404111552001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 688626520 + ... + 688628558.

It is an arithmetic number, because the mean of its divisors is an integer number (42604061760).

Almost surely, 2^{1404111552021} is an apocalyptic number.

It is an amenable number.

1404111552021 is a deficient number, since it is larger than the sum of its proper divisors (640883412459).

1404111552021 is a wasteful number, since it uses less digits than its factorization.

1404111552021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 1404111552021 its reverse (1202551114041), we get a palindrome (2606662666062).

The spelling of 1404111552021 in words is "one trillion, four hundred four billion, one hundred eleven million, five hundred fifty-two thousand, twenty-one".