21444046122 has 32 divisors (see below), whose sum is σ = 43508912832. Its totient is φ = 7045224704.

The previous prime is 21444046087. The next prime is 21444046193. The reversal of 21444046122 is 22164044412.

It is a super-2 number, since 2×21444046122² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21444046122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41698 + ... + 211250.

It is an arithmetic number, because the mean of its divisors is an integer number (1359653526).

Almost surely, 2^21444046122 is an apocalyptic number.

21444046122 is an abundant number, since it is smaller than the sum of its proper divisors (22064866710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21444046122 is a wasteful number, since it uses less digits than its factorization.

21444046122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169862.

The product of its (nonzero) digits is 12288, while the sum is 30.

The spelling of 21444046122 in words is "twenty-one billion, four hundred forty-four million, forty-six thousand, one hundred twenty-two".