102021419999 has 16 divisors (see below), whose sum is σ = 112139354880. Its totient is φ = 92384265600.

The previous prime is 102021419959. The next prime is 102021420013. The reversal of 102021419999 is 999914120201.

It is a de Polignac number, because none of the positive numbers 2^k-102021419999 is a prime.

It is a super-2 number, since 2×102021419999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021419939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541799 + ... + 705399.

It is an arithmetic number, because the mean of its divisors is an integer number (7008709680).

Almost surely, 2^102021419999 is an apocalyptic number.

102021419999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102021419999 is a deficient number, since it is larger than the sum of its proper divisors (10117934881).

102021419999 is a wasteful number, since it uses less digits than its factorization.

102021419999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165070.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 102021419999 in words is "one hundred two billion, twenty-one million, four hundred nineteen thousand, nine hundred ninety-nine".