2101010020019 has 16 divisors (see below), whose sum is σ = 2226349203840. Its totient is φ = 1975865969280.

The previous prime is 2101010020013. The next prime is 2101010020147. The reversal of 2101010020019 is 9100200101012.

It is a cyclic number.

It is not a de Polignac number, because 2101010020019 - 2³² = 2096715052723 is a prime.

It is a super-2 number, since 2×2101010020019² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101010019979 and 2101010020006.

It is not an unprimeable number, because it can be changed into a prime (2101010020013) 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, 150808484 + ... + 150822414.

It is an arithmetic number, because the mean of its divisors is an integer number (139146825240).

Almost surely, 2^{2101010020019} is an apocalyptic number.

2101010020019 is a deficient number, since it is larger than the sum of its proper divisors (125339183821).

2101010020019 is a wasteful number, since it uses less digits than its factorization.

2101010020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290.

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

The spelling of 2101010020019 in words is "two trillion, one hundred one billion, ten million, twenty thousand, nineteen".