1392286244021 has 2 divisors, whose sum is σ = 1392286244022. Its totient is φ = 1392286244020.

The previous prime is 1392286244003. The next prime is 1392286244033. The reversal of 1392286244021 is 1204426822931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1143853779121 + 248432464900 = 1069511^2 + 498430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392286244021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392286244051) 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, 696143122010 + 696143122011.

It is an arithmetic number, because the mean of its divisors is an integer number (696143122011).

Almost surely, 2^{1392286244021} is an apocalyptic number.

It is an amenable number.

1392286244021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392286244021 is an equidigital number, since it uses as much as digits as its factorization.

1392286244021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 1392286244021 in words is "one trillion, three hundred ninety-two billion, two hundred eighty-six million, two hundred forty-four thousand, twenty-one".