21011344041422 has 16 divisors (see below), whose sum is σ = 36019834460160. Its totient is φ = 9004764849048.

The previous prime is 21011344041407. The next prime is 21011344041427. The reversal of 21011344041422 is 22414044311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011344041427) 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, 6718022 + ... + 9335657.

It is an arithmetic number, because the mean of its divisors is an integer number (2251239653760).

Almost surely, 2^{21011344041422} is an apocalyptic number.

21011344041422 is a deficient number, since it is larger than the sum of its proper divisors (15008490418738).

21011344041422 is a wasteful number, since it uses less digits than its factorization.

21011344041422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147175.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 21011344041422 its reverse (22414044311012), we get a palindrome (43425388352434).

The spelling of 21011344041422 in words is "twenty-one trillion, eleven billion, three hundred forty-four million, forty-one thousand, four hundred twenty-two".