102219019 has 12 divisors (see below), whose sum is σ = 118627824. Its totient is φ = 86282064.

The previous prime is 102219017. The next prime is 102219043. The reversal of 102219019 is 910912201.

It is not a de Polignac number, because 102219019 - 2¹ = 102219017 is a prime.

It is a super-2 number, since 2×102219019² = 20897455690644722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102218984 and 102219002.

It is not an unprimeable number, because it can be changed into a prime (102219017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29797 + ... + 33049.

It is an arithmetic number, because the mean of its divisors is an integer number (9885652).

Almost surely, 2^102219019 is an apocalyptic number.

102219019 is a deficient number, since it is larger than the sum of its proper divisors (16408805).

102219019 is an frugal number, since it uses more digits than its factorization.

102219019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 102219019 is about 10110.3421801638. The cubic root of 102219019 is about 467.5670549245.

The spelling of 102219019 in words is "one hundred two million, two hundred nineteen thousand, nineteen".