140224210431021 has 40 divisors (see below), whose sum is σ = 209654170011000. Its totient is φ = 93400966149120.

The previous prime is 140224210430963. The next prime is 140224210431023. The reversal of 140224210431021 is 120134012422041.

140224210431021 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 242 + 104 + 310 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4228637013225 + 135995573417796 = 2056365^2 + 11661714^2 .

It is not a de Polignac number, because 140224210431021 - 2¹⁸ = 140224210168877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140224210431023) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 676912341 + ... + 677119461.

It is an arithmetic number, because the mean of its divisors is an integer number (5241354250275).

Almost surely, 2^{140224210431021} is an apocalyptic number.

It is an amenable number.

140224210431021 is a deficient number, since it is larger than the sum of its proper divisors (69429959579979).

140224210431021 is a wasteful number, since it uses less digits than its factorization.

140224210431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214411 (or 214402 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 140224210431021 its reverse (120134012422041), we get a palindrome (260358222853062).

The spelling of 140224210431021 in words is "one hundred forty trillion, two hundred twenty-four billion, two hundred ten million, four hundred thirty-one thousand, twenty-one".