1213202016001 has 2 divisors, whose sum is σ = 1213202016002. Its totient is φ = 1213202016000.

The previous prime is 1213202015981. The next prime is 1213202016017. The reversal of 1213202016001 is 1006102023121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016066016001 + 197136000000 = 1008001^2 + 444000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213202016001 - 2⁵ = 1213202015969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213202016001.

It is not a weakly prime, because it can be changed into another prime (1213202616001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606601008000 + 606601008001.

It is an arithmetic number, because the mean of its divisors is an integer number (606601008001).

Almost surely, 2^{1213202016001} is an apocalyptic number.

It is an amenable number.

1213202016001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213202016001 is an equidigital number, since it uses as much as digits as its factorization.

1213202016001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1213202016001 its reverse (1006102023121), we get a palindrome (2219304039122).

The spelling of 1213202016001 in words is "one trillion, two hundred thirteen billion, two hundred two million, sixteen thousand, one".