212013123219 has 16 divisors (see below), whose sum is σ = 314145699840. Its totient is φ = 141318599400.

The previous prime is 212013123193. The next prime is 212013123239. The reversal of 212013123219 is 912321310212.

212013123219 is a `hidden beast` number, since 2 + 1 + 20 + 1 + 312 + 321 + 9 = 666.

It is not a de Polignac number, because 212013123219 - 2²⁰ = 212012074643 is a prime.

It is a super-2 number, since 2×212013123219² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212013123192 and 212013123201.

It is not an unprimeable number, because it can be changed into a prime (212013123239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486007 + ... + 812544.

It is an arithmetic number, because the mean of its divisors is an integer number (19634106240).

Almost surely, 2^212013123219 is an apocalyptic number.

212013123219 is a deficient number, since it is larger than the sum of its proper divisors (102132576621).

212013123219 is a wasteful number, since it uses less digits than its factorization.

212013123219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304607 (or 1304601 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 212013123219 in words is "two hundred twelve billion, thirteen million, one hundred twenty-three thousand, two hundred nineteen".