100221121519 has 2 divisors, whose sum is σ = 100221121520. Its totient is φ = 100221121518.

The previous prime is 100221121487. The next prime is 100221121523. The reversal of 100221121519 is 915121122001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100221121519 - 2⁵ = 100221121487 is a prime.

It is a super-2 number, since 2×100221121519² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100221121493 and 100221121502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100221121529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110560759 + 50110560760.

It is an arithmetic number, because the mean of its divisors is an integer number (50110560760).

Almost surely, 2^100221121519 is an apocalyptic number.

100221121519 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221121519 is an equidigital number, since it uses as much as digits as its factorization.

100221121519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 100221121519 in words is "one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, five hundred nineteen".