140042212444421 has 32 divisors (see below), whose sum is σ = 169753580236800. Its totient is φ = 112781424427776.

The previous prime is 140042212444411. The next prime is 140042212444447. The reversal of 140042212444421 is 124444212240041.

It is not a de Polignac number, because 140042212444421 - 2⁶ = 140042212444357 is a prime.

It is a super-2 number, since 2×140042212444421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140042212444411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2566587686 + ... + 2566642248.

It is an arithmetic number, because the mean of its divisors is an integer number (5304799382400).

Almost surely, 2^{140042212444421} is an apocalyptic number.

It is an amenable number.

140042212444421 is a deficient number, since it is larger than the sum of its proper divisors (29711367792379).

140042212444421 is a wasteful number, since it uses less digits than its factorization.

140042212444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91193.

The product of its (nonzero) digits is 65536, while the sum is 35.

Adding to 140042212444421 its reverse (124444212240041), we get a palindrome (264486424684462).

The spelling of 140042212444421 in words is "one hundred forty trillion, forty-two billion, two hundred twelve million, four hundred forty-four thousand, four hundred twenty-one".