144400121022 has 96 divisors (see below), whose sum is σ = 318345786720. Its totient is φ = 43604951040.

The previous prime is 144400121009. The next prime is 144400121023. The reversal of 144400121022 is 220121004441.

It is a self number, because there is not a number n which added to its sum of digits gives 144400121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144400121023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16942122 + ... + 16950642.

It is an arithmetic number, because the mean of its divisors is an integer number (3316101945).

Almost surely, 2^144400121022 is an apocalyptic number.

144400121022 is an abundant number, since it is smaller than the sum of its proper divisors (173945665698).

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

144400121022 is a wasteful number, since it uses less digits than its factorization.

144400121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926 (or 8909 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 144400121022 its reverse (220121004441), we get a palindrome (364521125463).

The spelling of 144400121022 in words is "one hundred forty-four billion, four hundred million, one hundred twenty-one thousand, twenty-two".