100120121001019 has 6 divisors (see below), whose sum is σ = 116466263205324. Its totient is φ = 85817246572260.

The previous prime is 100120121000993. The next prime is 100120121001029. The reversal of 100120121001019 is 910100121021001.

It is not a de Polignac number, because 100120121001019 - 2¹⁵ = 100120120968251 is a prime.

It is a super-2 number, since 2×100120121001019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120121000987 and 100120121001005.

It is not an unprimeable number, because it can be changed into a prime (100120121001029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1021633887717 + ... + 1021633887814.

It is an arithmetic number, because the mean of its divisors is an integer number (19411043867554).

Almost surely, 2^{100120121001019} is an apocalyptic number.

100120121001019 is a deficient number, since it is larger than the sum of its proper divisors (16346142204305).

100120121001019 is an equidigital number, since it uses as much as digits as its factorization.

100120121001019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043267775545 (or 2043267775538 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 100120121001019 in words is "one hundred trillion, one hundred twenty billion, one hundred twenty-one million, one thousand, nineteen".