210221102100019 has 16 divisors (see below), whose sum is σ = 218130148131840. Its totient is φ = 202445845992000.

The previous prime is 210221102100017. The next prime is 210221102100041. The reversal of 210221102100019 is 910001201122012.

It is a cyclic number.

It is not a de Polignac number, because 210221102100019 - 2¹ = 210221102100017 is a prime.

It is a super-2 number, since 2×210221102100019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210221102100017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4370224 + ... + 20965234.

It is an arithmetic number, because the mean of its divisors is an integer number (13633134258240).

Almost surely, 2^{210221102100019} is an apocalyptic number.

210221102100019 is a deficient number, since it is larger than the sum of its proper divisors (7909046031821).

210221102100019 is a wasteful number, since it uses less digits than its factorization.

210221102100019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16599042.

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

The spelling of 210221102100019 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, nineteen".