2144402220142 has 32 divisors (see below), whose sum is σ = 3959162085312. Its totient is φ = 848278013184.

The previous prime is 2144402220101. The next prime is 2144402220209. The reversal of 2144402220142 is 2410222044412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144402220142.

It is a congruent number.

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, 2377368 + ... + 3152884.

It is an arithmetic number, because the mean of its divisors is an integer number (123723815166).

Almost surely, 2^{2144402220142} is an apocalyptic number.

2144402220142 is a deficient number, since it is larger than the sum of its proper divisors (1814759865170).

2144402220142 is a wasteful number, since it uses less digits than its factorization.

2144402220142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790732.

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

Adding to 2144402220142 its reverse (2410222044412), we get a palindrome (4554624264554).

The spelling of 2144402220142 in words is "two trillion, one hundred forty-four billion, four hundred two million, two hundred twenty thousand, one hundred forty-two".