21044014042222 has 16 divisors (see below), whose sum is σ = 31572755061120. Its totient is φ = 10519762612408.

The previous prime is 21044014042171. The next prime is 21044014042223. The reversal of 21044014042222 is 22224041044012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21044014042223) 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, 193210263 + ... + 193319149.

It is an arithmetic number, because the mean of its divisors is an integer number (1973297191320).

Almost surely, 2^{21044014042222} is an apocalyptic number.

21044014042222 is a deficient number, since it is larger than the sum of its proper divisors (10528741018898).

21044014042222 is a wasteful number, since it uses less digits than its factorization.

21044014042222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128615.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 21044014042222 its reverse (22224041044012), we get a palindrome (43268055086234).

The spelling of 21044014042222 in words is "twenty-one trillion, forty-four billion, fourteen million, forty-two thousand, two hundred twenty-two".