212021110019 has 2 divisors, whose sum is σ = 212021110020. Its totient is φ = 212021110018.

The previous prime is 212021109931. The next prime is 212021110039. The reversal of 212021110019 is 910011120212.

It is an a-pointer prime, because the next prime (212021110039) can be obtained adding 212021110019 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021110019 - 2²⁸ = 211752674563 is a prime.

It is a super-2 number, since 2×212021110019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212021110039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010555009 + 106010555010.

It is an arithmetic number, because the mean of its divisors is an integer number (106010555010).

Almost surely, 2^212021110019 is an apocalyptic number.

212021110019 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021110019 is an equidigital number, since it uses as much as digits as its factorization.

212021110019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 212021110019 in words is "two hundred twelve billion, twenty-one million, one hundred ten thousand, nineteen".