102120219 has 12 divisors (see below), whose sum is σ = 149375200. Its totient is φ = 67217904.

The previous prime is 102120203. The next prime is 102120301. The reversal of 102120219 is 912021201.

It is not a de Polignac number, because 102120219 - 2⁴ = 102120203 is a prime.

It is a super-2 number, since 2×102120219² = 20857078257215922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120719) 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, 71104 + ... + 72525.

Almost surely, 2^102120219 is an apocalyptic number.

102120219 is a deficient number, since it is larger than the sum of its proper divisors (47254981).

102120219 is a wasteful number, since it uses less digits than its factorization.

102120219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143714 (or 143711 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 102120219 is about 10105.4549130655. The cubic root of 102120219 is about 467.4163637356.

The spelling of 102120219 in words is "one hundred two million, one hundred twenty thousand, two hundred nineteen".