11420404422021 has 48 divisors (see below), whose sum is σ = 19999883988864. Its totient is φ = 6130322030592.

The previous prime is 11420404421999. The next prime is 11420404422029. The reversal of 11420404422021 is 12022440402411.

11420404422021 is a `hidden beast` number, since 1 + 14 + 2 + 0 + 4 + 0 + 442 + 202 + 1 = 666.

It is not a de Polignac number, because 11420404422021 - 2⁹ = 11420404421509 is a prime.

It is a super-2 number, since 2×11420404422021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420404422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9634236 + ... + 10754501.

It is an arithmetic number, because the mean of its divisors is an integer number (416664249768).

Almost surely, 2^{11420404422021} is an apocalyptic number.

It is an amenable number.

11420404422021 is a deficient number, since it is larger than the sum of its proper divisors (8579479566843).

11420404422021 is a wasteful number, since it uses less digits than its factorization.

11420404422021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20389290 (or 20389287 counting only the distinct ones).

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

Adding to 11420404422021 its reverse (12022440402411), we get a palindrome (23442844824432).

The spelling of 11420404422021 in words is "eleven trillion, four hundred twenty billion, four hundred four million, four hundred twenty-two thousand, twenty-one".