140645220021201 has 64 divisors (see below), whose sum is σ = 218758179225600. Its totient is φ = 78721651388160.

The previous prime is 140645220021193. The next prime is 140645220021217. The reversal of 140645220021201 is 102120022546041.

It is not a de Polignac number, because 140645220021201 - 2³ = 140645220021193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140645220031201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140000976 + ... + 141001998.

It is an arithmetic number, because the mean of its divisors is an integer number (3418096550400).

Almost surely, 2^{140645220021201} is an apocalyptic number.

It is an amenable number.

140645220021201 is a deficient number, since it is larger than the sum of its proper divisors (78112959204399).

140645220021201 is a wasteful number, since it uses less digits than its factorization.

140645220021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001806.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 140645220021201 its reverse (102120022546041), we get a palindrome (242765242567242).

The spelling of 140645220021201 in words is "one hundred forty trillion, six hundred forty-five billion, two hundred twenty million, twenty-one thousand, two hundred one".