140224144213021 has 32 divisors (see below), whose sum is σ = 157153189858560. Its totient is φ = 125065664701120.

The previous prime is 140224144212991. The next prime is 140224144213057. The reversal of 140224144213021 is 120312441422041.

It is a de Polignac number, because none of the positive numbers 2^k-140224144213021 is a prime.

It is a super-2 number, since 2×140224144213021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140224144213091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3049057095 + ... + 3049103083.

It is an arithmetic number, because the mean of its divisors is an integer number (4911037183080).

Almost surely, 2^{140224144213021} is an apocalyptic number.

140224144213021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140224144213021 is a deficient number, since it is larger than the sum of its proper divisors (16929045645539).

140224144213021 is an equidigital number, since it uses as much as digits as its factorization.

140224144213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89298 (or 89276 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 140224144213021 its reverse (120312441422041), we get a palindrome (260536585635062).

The spelling of 140224144213021 in words is "one hundred forty trillion, two hundred twenty-four billion, one hundred forty-four million, two hundred thirteen thousand, twenty-one".