1021498140899 has 2 divisors, whose sum is σ = 1021498140900. Its totient is φ = 1021498140898.

The previous prime is 1021498140869. The next prime is 1021498140907. The reversal of 1021498140899 is 9980418941201.

1021498140899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (9980418941201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021498140899 - 2³⁶ = 952778664163 is a prime.

It is a super-2 number, since 2×1021498140899² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1021498140829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510749070449 + 510749070450.

It is an arithmetic number, because the mean of its divisors is an integer number (510749070450).

Almost surely, 2^{1021498140899} is an apocalyptic number.

1021498140899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021498140899 is an equidigital number, since it uses as much as digits as its factorization.

1021498140899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The spelling of 1021498140899 in words is "one trillion, twenty-one billion, four hundred ninety-eight million, one hundred forty thousand, eight hundred ninety-nine".