144140202021 has 32 divisors (see below), whose sum is σ = 204295074048. Its totient is φ = 90084556800.

The previous prime is 144140201983. The next prime is 144140202049. The reversal of 144140202021 is 120202041441.

It is not a de Polignac number, because 144140202021 - 2⁷ = 144140201893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144140202071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20638096 + ... + 20645078.

It is an arithmetic number, because the mean of its divisors is an integer number (6384221064).

Almost surely, 2^144140202021 is an apocalyptic number.

It is an amenable number.

144140202021 is a deficient number, since it is larger than the sum of its proper divisors (60154872027).

144140202021 is a wasteful number, since it uses less digits than its factorization.

144140202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541.

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

Adding to 144140202021 its reverse (120202041441), we get a palindrome (264342243462).

The spelling of 144140202021 in words is "one hundred forty-four billion, one hundred forty million, two hundred two thousand, twenty-one".