140020022432021 has 4 divisors (see below), whose sum is σ = 140020065962700. Its totient is φ = 140019978901344.

The previous prime is 140020022432011. The next prime is 140020022432041. The reversal of 140020022432021 is 120234220020041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100826299912900 + 39193722519121 = 10041230^2 + 6260489^2 .

It is a cyclic number.

It is not a de Polignac number, because 140020022432021 - 2¹⁸ = 140020022169877 is a prime.

It is a super-2 number, since 2×140020022432021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020022432011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16518926 + ... + 23514143.

It is an arithmetic number, because the mean of its divisors is an integer number (35005016490675).

Almost surely, 2^{140020022432021} is an apocalyptic number.

It is an amenable number.

140020022432021 is a deficient number, since it is larger than the sum of its proper divisors (43530679).

140020022432021 is an equidigital number, since it uses as much as digits as its factorization.

140020022432021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43530678.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 140020022432021 its reverse (120234220020041), we get a palindrome (260254242452062).

The spelling of 140020022432021 in words is "one hundred forty trillion, twenty billion, twenty-two million, four hundred thirty-two thousand, twenty-one".