1312142000221 has 16 divisors (see below), whose sum is σ = 1437396045120. Its totient is φ = 1190372808960.

The previous prime is 1312142000219. The next prime is 1312142000291. The reversal of 1312142000221 is 1220002412131.

It is a cyclic number.

It is not a de Polignac number, because 1312142000221 - 2¹ = 1312142000219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312142000291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2790901 + ... + 3226981.

It is an arithmetic number, because the mean of its divisors is an integer number (89837252820).

Almost surely, 2^{1312142000221} is an apocalyptic number.

It is an amenable number.

1312142000221 is a deficient number, since it is larger than the sum of its proper divisors (125254044899).

1312142000221 is a wasteful number, since it uses less digits than its factorization.

1312142000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440076.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1312142000221 its reverse (1220002412131), we get a palindrome (2532144412352).

The spelling of 1312142000221 in words is "one trillion, three hundred twelve billion, one hundred forty-two million, two hundred twenty-one", and thus it is an aban number.