19120212 has 84 divisors (see below), whose sum is σ = 51414720. Its totient is φ = 6216912.

The previous prime is 19120201. The next prime is 19120219. The reversal of 19120212 is 21202191.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19120219) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 230323 + ... + 230405.

It is an arithmetic number, because the mean of its divisors is an integer number (612080).

Almost surely, 2^19120212 is an apocalyptic number.

19120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25707360).

19120212 is an abundant number, since it is smaller than the sum of its proper divisors (32294508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19120212 is an equidigital number, since it uses as much as digits as its factorization.

19120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 167 counting only the distinct ones).

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

The square root of 19120212 is about 4372.6664633836. Note that the first 3 decimals coincide. The cubic root of 19120212 is about 267.4017433992.

The spelling of 19120212 in words is "nineteen million, one hundred twenty thousand, two hundred twelve".