2021132019 has 4 divisors (see below), whose sum is σ = 2694842696. Its totient is φ = 1347421344.

The previous prime is 2021131999. The next prime is 2021132041. The reversal of 2021132019 is 9102311202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2021132019 - 2⁷ = 2021131891 is a prime.

It is a super-2 number, since 2×2021132019² = 8169949276454032722, 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 = 2021131986 and 2021132004.

It is not an unprimeable number, because it can be changed into a prime (2021132089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336855334 + ... + 336855339.

It is an arithmetic number, because the mean of its divisors is an integer number (673710674).

Almost surely, 2^2021132019 is an apocalyptic number.

2021132019 is a deficient number, since it is larger than the sum of its proper divisors (673710677).

2021132019 is an equidigital number, since it uses as much as digits as its factorization.

2021132019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673710676.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2021132019 is about 44957.0018906955. The cubic root of 2021132019 is about 1264.3429582230.

The spelling of 2021132019 in words is "two billion, twenty-one million, one hundred thirty-two thousand, nineteen".