140315051221 has 8 divisors (see below), whose sum is σ = 142671412224. Its totient is φ = 137978245440.

The previous prime is 140315051159. The next prime is 140315051249. The reversal of 140315051221 is 122150513041.

140315051221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140315051221 - 2⁹ = 140315050709 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 (140315051021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874335 + ... + 4903036.

It is an arithmetic number, because the mean of its divisors is an integer number (17833926528).

Almost surely, 2^140315051221 is an apocalyptic number.

It is an amenable number.

140315051221 is a deficient number, since it is larger than the sum of its proper divisors (2356361003).

140315051221 is a wasteful number, since it uses less digits than its factorization.

140315051221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9777611.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 140315051221 its reverse (122150513041), we get a palindrome (262465564262).

The spelling of 140315051221 in words is "one hundred forty billion, three hundred fifteen million, fifty-one thousand, two hundred twenty-one".