2021213011 has 8 divisors (see below), whose sum is σ = 2141150544. Its totient is φ = 1901391360.

The previous prime is 2021213009. The next prime is 2021213057. The reversal of 2021213011 is 1103121202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021213011 - 2¹ = 2021213009 is a prime.

It is a super-2 number, since 2×2021213011² = 8170604071671372242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021212982 and 2021213000.

It is not an unprimeable number, because it can be changed into a prime (2021213081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8331 + ... + 64123.

It is an arithmetic number, because the mean of its divisors is an integer number (267643818).

Almost surely, 2^2021213011 is an apocalyptic number.

2021213011 is a deficient number, since it is larger than the sum of its proper divisors (119937533).

2021213011 is a wasteful number, since it uses less digits than its factorization.

2021213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57941.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2021213011 is about 44957.9026534824. The cubic root of 2021213011 is about 1264.3598464975.

Adding to 2021213011 its reverse (1103121202), we get a palindrome (3124334213).

The spelling of 2021213011 in words is "two billion, twenty-one million, two hundred thirteen thousand, eleven".