440021103101221 has 8 divisors (see below), whose sum is σ = 455294884618080. Its totient is φ = 424754030919792.

The previous prime is 440021103101189. The next prime is 440021103101249. The reversal of 440021103101221 is 122101301120044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440021103101221 - 2⁵ = 440021103101189 is a prime.

It is a super-2 number, since 2×440021103101221² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440021103101192 and 440021103101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440051103101221) 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, 1677200415 + ... + 1677462748.

It is an arithmetic number, because the mean of its divisors is an integer number (56911860577260).

Almost surely, 2^{440021103101221} is an apocalyptic number.

It is an amenable number.

440021103101221 is a deficient number, since it is larger than the sum of its proper divisors (15273781516859).

440021103101221 is a wasteful number, since it uses less digits than its factorization.

440021103101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354667715.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 440021103101221 its reverse (122101301120044), we get a palindrome (562122404221265).

The spelling of 440021103101221 in words is "four hundred forty trillion, twenty-one billion, one hundred three million, one hundred one thousand, two hundred twenty-one".