1424401242021 has 12 divisors (see below), whose sum is σ = 2057479783372. Its totient is φ = 949595602176.

The previous prime is 1424401241983. The next prime is 1424401242071. The reversal of 1424401242021 is 1202421044241.

1424401242021 is a `hidden beast` number, since 1 + 4 + 2 + 440 + 12 + 4 + 202 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 624961397025 + 799439844996 = 790545^2 + 894114^2 .

It is not a de Polignac number, because 1424401242021 - 2⁶ = 1424401241957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424401242071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2018715 + ... + 2631351.

Almost surely, 2^{1424401242021} is an apocalyptic number.

It is an amenable number.

1424401242021 is a deficient number, since it is larger than the sum of its proper divisors (633078541351).

1424401242021 is a wasteful number, since it uses less digits than its factorization.

1424401242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870980 (or 870977 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 1424401242021 its reverse (1202421044241), we get a palindrome (2626822286262).

The spelling of 1424401242021 in words is "one trillion, four hundred twenty-four billion, four hundred one million, two hundred forty-two thousand, twenty-one".