20110021012219 has 2 divisors, whose sum is σ = 20110021012220. Its totient is φ = 20110021012218.

The previous prime is 20110021012121. The next prime is 20110021012243. The reversal of 20110021012219 is 91221012001102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20110021012219 - 2²¹ = 20110018915067 is a prime.

It is a super-2 number, since 2×20110021012219² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20110021012219.

It is not a weakly prime, because it can be changed into another prime (20110021012519) 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 as a sum of consecutive naturals, namely, 10055010506109 + 10055010506110.

It is an arithmetic number, because the mean of its divisors is an integer number (10055010506110).

Almost surely, 2^{20110021012219} is an apocalyptic number.

20110021012219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110021012219 is an equidigital number, since it uses as much as digits as its factorization.

20110021012219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 20110021012219 in words is "twenty trillion, one hundred ten billion, twenty-one million, twelve thousand, two hundred nineteen".