20211011019 has 12 divisors (see below), whose sum is σ = 29207929296. Its totient is φ = 13467431952.

The previous prime is 20211011011. The next prime is 20211011039. The reversal of 20211011019 is 91011011202.

It is a happy number.

It is not a de Polignac number, because 20211011019 - 2³ = 20211011011 is a prime.

It is a super-2 number, since 2×20211011019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211010992 and 20211011010.

It is not an unprimeable number, because it can be changed into a prime (20211011011) 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, 528447 + ... + 565400.

It is an arithmetic number, because the mean of its divisors is an integer number (2433994108).

Almost surely, 2^20211011019 is an apocalyptic number.

20211011019 is a deficient number, since it is larger than the sum of its proper divisors (8996918277).

20211011019 is a wasteful number, since it uses less digits than its factorization.

20211011019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095906 (or 1095903 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 20211011019 in words is "twenty billion, two hundred eleven million, eleven thousand, nineteen".