140224143021 has 16 divisors (see below), whose sum is σ = 187173794304. Its totient is φ = 93378680384.

The previous prime is 140224143013. The next prime is 140224143029. The reversal of 140224143021 is 120341422041.

It is an interprime number because it is at equal distance from previous prime (140224143013) and next prime (140224143029).

It is a cyclic number.

It is not a de Polignac number, because 140224143021 - 2³ = 140224143013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140224142982 and 140224143000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140224143029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23163031 + ... + 23169083.

It is an arithmetic number, because the mean of its divisors is an integer number (11698362144).

Almost surely, 2^140224143021 is an apocalyptic number.

It is an amenable number.

140224143021 is a deficient number, since it is larger than the sum of its proper divisors (46949651283).

140224143021 is a wasteful number, since it uses less digits than its factorization.

140224143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 140224143021 its reverse (120341422041), we get a palindrome (260565565062).

The spelling of 140224143021 in words is "one hundred forty billion, two hundred twenty-four million, one hundred forty-three thousand, twenty-one".