140421022221013 has 4 divisors (see below), whose sum is σ = 140594167748608. Its totient is φ = 140247876693420.

The previous prime is 140421022220989. The next prime is 140421022221019. The reversal of 140421022221013 is 310122220124041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140421022221013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140421022221019) 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, 86572762581 + ... + 86572764202.

It is an arithmetic number, because the mean of its divisors is an integer number (35148541937152).

Almost surely, 2^{140421022221013} is an apocalyptic number.

It is an amenable number.

140421022221013 is a deficient number, since it is larger than the sum of its proper divisors (173145527595).

140421022221013 is an equidigital number, since it uses as much as digits as its factorization.

140421022221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173145527594.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 140421022221013 its reverse (310122220124041), we get a palindrome (450543242345054).

The spelling of 140421022221013 in words is "one hundred forty trillion, four hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, thirteen".