1362171292021 has 2 divisors, whose sum is σ = 1362171292022. Its totient is φ = 1362171292020.

The previous prime is 1362171292007. The next prime is 1362171292087. The reversal of 1362171292021 is 1202921712631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1296205020100 + 65966271921 = 1138510^2 + 256839^2 .

It is a cyclic number.

It is not a de Polignac number, because 1362171292021 - 2⁷ = 1362171291893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1362171292421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681085646010 + 681085646011.

It is an arithmetic number, because the mean of its divisors is an integer number (681085646011).

Almost surely, 2^{1362171292021} is an apocalyptic number.

It is an amenable number.

1362171292021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1362171292021 is an equidigital number, since it uses as much as digits as its factorization.

1362171292021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 1362171292021 in words is "one trillion, three hundred sixty-two billion, one hundred seventy-one million, two hundred ninety-two thousand, twenty-one".