140051220421 has 8 divisors (see below), whose sum is σ = 163078510464. Its totient is φ = 117778923600.

The previous prime is 140051220401. The next prime is 140051220457. The reversal of 140051220421 is 124022150041.

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 140051220421 - 2⁵ = 140051220389 is a prime.

It is a super-2 number, since 2×140051220421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140051220392 and 140051220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140051220401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188747905 + ... + 188748646.

It is an arithmetic number, because the mean of its divisors is an integer number (20384813808).

Almost surely, 2^140051220421 is an apocalyptic number.

It is an amenable number.

140051220421 is a deficient number, since it is larger than the sum of its proper divisors (23027290043).

140051220421 is an equidigital number, since it uses as much as digits as its factorization.

140051220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377496611.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 140051220421 its reverse (124022150041), we get a palindrome (264073370462).

The spelling of 140051220421 in words is "one hundred forty billion, fifty-one million, two hundred twenty thousand, four hundred twenty-one".