21001022211119 has 2 divisors, whose sum is σ = 21001022211120. Its totient is φ = 21001022211118.

The previous prime is 21001022211109. The next prime is 21001022211167. The reversal of 21001022211119 is 91111222010012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21001022211119 - 2⁸ = 21001022210863 is a prime.

It is a super-2 number, since 2×21001022211119² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21001022211094 and 21001022211103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21001022211109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500511105559 + 10500511105560.

It is an arithmetic number, because the mean of its divisors is an integer number (10500511105560).

Almost surely, 2^{21001022211119} is an apocalyptic number.

21001022211119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21001022211119 is an equidigital number, since it uses as much as digits as its factorization.

21001022211119 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 23.

The spelling of 21001022211119 in words is "twenty-one trillion, one billion, twenty-two million, two hundred eleven thousand, one hundred nineteen".