4421021212404 has 36 divisors (see below), whose sum is σ = 11175515900640. Its totient is φ = 1473653070480.

The previous prime is 4421021212397. The next prime is 4421021212453. The reversal of 4421021212404 is 4042121201244.

4421021212404 is a `hidden beast` number, since 4 + 4 + 21 + 0 + 21 + 212 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4421021212404² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1859257 + ... + 3506975.

It is an arithmetic number, because the mean of its divisors is an integer number (310430997240).

Almost surely, 2^{4421021212404} is an apocalyptic number.

It is an amenable number.

4421021212404 is an abundant number, since it is smaller than the sum of its proper divisors (6754494688236).

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

4421021212404 is a wasteful number, since it uses less digits than its factorization.

4421021212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722260 (or 1722255 counting only the distinct ones).

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

Adding to 4421021212404 its reverse (4042121201244), we get a palindrome (8463142413648).

The spelling of 4421021212404 in words is "four trillion, four hundred twenty-one billion, twenty-one million, two hundred twelve thousand, four hundred four".