2011220019 has 12 divisors (see below), whose sum is σ = 2935046296. Its totient is φ = 1326989952.

The previous prime is 2011220011. The next prime is 2011220023. The reversal of 2011220019 is 9100221102.

It is not a de Polignac number, because 2011220019 - 2³ = 2011220011 is a prime.

It is a super-2 number, since 2×2011220019² = 8090011929652720722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011219983 and 2011220010.

It is not an unprimeable number, because it can be changed into a prime (2011220011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1151029 + ... + 1152774.

Almost surely, 2^2011220019 is an apocalyptic number.

2011220019 is a deficient number, since it is larger than the sum of its proper divisors (923826277).

2011220019 is a wasteful number, since it uses less digits than its factorization.

2011220019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303906 (or 2303903 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2011220019 is about 44846.6277327515. The cubic root of 2011220019 is about 1262.2727140955.

The spelling of 2011220019 in words is "two billion, eleven million, two hundred twenty thousand, nineteen".