210012012019 has 4 divisors (see below), whose sum is σ = 212050963696. Its totient is φ = 207973060344.

The previous prime is 210012012013. The next prime is 210012012031. The reversal of 210012012019 is 910210210012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210012012019 - 2³ = 210012012011 is a prime.

It is a super-2 number, since 2×210012012019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210012011987 and 210012012005.

It is not an unprimeable number, because it can be changed into a prime (210012012011) 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 3 ways as a sum of consecutive naturals, for example, 1019475684 + ... + 1019475889.

It is an arithmetic number, because the mean of its divisors is an integer number (53012740924).

Almost surely, 2^210012012019 is an apocalyptic number.

210012012019 is a deficient number, since it is larger than the sum of its proper divisors (2038951677).

210012012019 is a wasteful number, since it uses less digits than its factorization.

210012012019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038951676.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 210012012019 in words is "two hundred ten billion, twelve million, twelve thousand, nineteen".