21044420034301 has 16 divisors (see below), whose sum is σ = 21737322528768. Its totient is φ = 20352399001200.

The previous prime is 21044420034271. The next prime is 21044420034349. The reversal of 21044420034301 is 10343002444012.

It is a cyclic number.

It is not a de Polignac number, because 21044420034301 - 2¹³ = 21044420026109 is a prime.

It is a super-2 number, since 2×21044420034301² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21044420034301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21044420034401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455769946 + ... + 455816116.

It is an arithmetic number, because the mean of its divisors is an integer number (1358582658048).

Almost surely, 2^{21044420034301} is an apocalyptic number.

It is an amenable number.

21044420034301 is a deficient number, since it is larger than the sum of its proper divisors (692902494467).

21044420034301 is a wasteful number, since it uses less digits than its factorization.

21044420034301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55392.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21044420034301 its reverse (10343002444012), we get a palindrome (31387422478313).

The spelling of 21044420034301 in words is "twenty-one trillion, forty-four billion, four hundred twenty million, thirty-four thousand, three hundred one".