4424430201021 has 8 divisors (see below), whose sum is σ = 6554711408960. Its totient is φ = 2949620133996.

The previous prime is 4424430200987. The next prime is 4424430201091. The reversal of 4424430201021 is 1201020344244.

4424430201021 is a `hidden beast` number, since 4 + 4 + 2 + 4 + 430 + 201 + 0 + 21 = 666.

It is not a de Polignac number, because 4424430201021 - 2⁷ = 4424430200893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 163867785223 = 4424430201021 / (4 + 4 + 2 + 4 + 4 + 3 + 0 + 2 + 0 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424430201091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81933892585 + ... + 81933892638.

It is an arithmetic number, because the mean of its divisors is an integer number (819338926120).

Almost surely, 2^{4424430201021} is an apocalyptic number.

It is an amenable number.

4424430201021 is a deficient number, since it is larger than the sum of its proper divisors (2130281207939).

4424430201021 is a wasteful number, since it uses less digits than its factorization.

4424430201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163867785232 (or 163867785226 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4424430201021 its reverse (1201020344244), we get a palindrome (5625450545265).

The spelling of 4424430201021 in words is "four trillion, four hundred twenty-four billion, four hundred thirty million, two hundred one thousand, twenty-one".