20011021211119 has 2 divisors, whose sum is σ = 20011021211120. Its totient is φ = 20011021211118.

The previous prime is 20011021211113. The next prime is 20011021211123. The reversal of 20011021211119 is 91111212011002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20011021211119 - 2¹³ = 20011021202927 is a prime.

It is a super-2 number, since 2×20011021211119² (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 20011021211119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011021211113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005510605559 + 10005510605560.

It is an arithmetic number, because the mean of its divisors is an integer number (10005510605560).

Almost surely, 2^{20011021211119} is an apocalyptic number.

20011021211119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011021211119 is an equidigital number, since it uses as much as digits as its factorization.

20011021211119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 20011021211119 in words is "twenty trillion, eleven billion, twenty-one million, two hundred eleven thousand, one hundred nineteen".