100021102019 has 2 divisors, whose sum is σ = 100021102020. Its totient is φ = 100021102018.

The previous prime is 100021102009. The next prime is 100021102033. The reversal of 100021102019 is 910201120001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100021102019 - 2¹⁶ = 100021036483 is a prime.

It is a super-2 number, since 2×100021102019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100021101988 and 100021102006.

It is not a weakly prime, because it can be changed into another prime (100021102009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010551009 + 50010551010.

It is an arithmetic number, because the mean of its divisors is an integer number (50010551010).

Almost surely, 2^100021102019 is an apocalyptic number.

100021102019 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021102019 is an equidigital number, since it uses as much as digits as its factorization.

100021102019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 100021102019 in words is "one hundred billion, twenty-one million, one hundred two thousand, nineteen".