140223421401021 has 24 divisors (see below), whose sum is σ = 231483275110464. Its totient is φ = 80126512744320.

The previous prime is 140223421401013. The next prime is 140223421401043. The reversal of 140223421401021 is 120104124322041.

140223421401021 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 234 + 2 + 1 + 401 + 0 + 21 = 666.

It is not a de Polignac number, because 140223421401021 - 2³ = 140223421401013 is a prime.

It is a super-6 number, since 6×140223421401021⁶ (a number of 86 digits) contains 666666 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140223421401121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11655660 + ... + 20403461.

It is an arithmetic number, because the mean of its divisors is an integer number (9645136462936).

Almost surely, 2^{140223421401021} is an apocalyptic number.

It is an amenable number.

140223421401021 is a deficient number, since it is larger than the sum of its proper divisors (91259853709443).

140223421401021 is a wasteful number, since it uses less digits than its factorization.

140223421401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32128561 (or 32128558 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 140223421401021 its reverse (120104124322041), we get a palindrome (260327545723062).

The spelling of 140223421401021 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred twenty-one million, four hundred one thousand, twenty-one".