142140221001 has 12 divisors (see below), whose sum is σ = 205431603780. Its totient is φ = 94705708320.

The previous prime is 142140220969. The next prime is 142140221033. The reversal of 142140221001 is 100122041241.

It is an interprime number because it is at equal distance from previous prime (142140220969) and next prime (142140221033).

It can be written as a sum of positive squares in 2 ways, for example, as 40666755600 + 101473465401 = 201660^2 + 318549^2 .

It is not a de Polignac number, because 142140221001 - 2⁵ = 142140220969 is a prime.

It is a super-5 number, since 5×142140221001⁵ (a number of 57 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (142140221071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4520046 + ... + 4551383.

It is an arithmetic number, because the mean of its divisors is an integer number (17119300315).

Almost surely, 2^142140221001 is an apocalyptic number.

It is an amenable number.

142140221001 is a deficient number, since it is larger than the sum of its proper divisors (63291382779).

142140221001 is a wasteful number, since it uses less digits than its factorization.

142140221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073176 (or 9073173 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 142140221001 its reverse (100122041241), we get a palindrome (242262262242).

The spelling of 142140221001 in words is "one hundred forty-two billion, one hundred forty million, two hundred twenty-one thousand, one".