2090121019 has 12 divisors (see below), whose sum is σ = 2471227248. Its totient is φ = 1762160400.

The previous prime is 2090121013. The next prime is 2090121037. The reversal of 2090121019 is 9101210902.

It is not a de Polignac number, because 2090121019 - 2⁷ = 2090120891 is a prime.

It is a super-3 number, since 3×2090121019³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2090120984 and 2090121002.

It is not an unprimeable number, because it can be changed into a prime (2090121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346647 + ... + 352624.

It is an arithmetic number, because the mean of its divisors is an integer number (205935604).

Almost surely, 2^2090121019 is an apocalyptic number.

2090121019 is a deficient number, since it is larger than the sum of its proper divisors (381106229).

2090121019 is an equidigital number, since it uses as much as digits as its factorization.

2090121019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699346 (or 699339 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 2090121019 is about 45717.8413641764. The cubic root of 2090121019 is about 1278.5679416706.

The spelling of 2090121019 in words is "two billion, ninety million, one hundred twenty-one thousand, nineteen".