21102101012119 has 2 divisors, whose sum is σ = 21102101012120. Its totient is φ = 21102101012118.

The previous prime is 21102101012071. The next prime is 21102101012147. The reversal of 21102101012119 is 91121010120112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21102101012119 - 2¹⁷ = 21102100881047 is a prime.

It is a super-2 number, since 2×21102101012119² (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 21102101012119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21102101012519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551050506059 + 10551050506060.

It is an arithmetic number, because the mean of its divisors is an integer number (10551050506060).

Almost surely, 2^{21102101012119} is an apocalyptic number.

21102101012119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102101012119 is an equidigital number, since it uses as much as digits as its factorization.

21102101012119 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 22.

The spelling of 21102101012119 in words is "twenty-one trillion, one hundred two billion, one hundred one million, twelve thousand, one hundred nineteen".