2120211001 has 4 divisors (see below), whose sum is σ = 2212394112. Its totient is φ = 2028027892.

The previous prime is 2120210999. The next prime is 2120211011. The reversal of 2120211001 is 1001120212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120211001 - 2¹ = 2120210999 is a prime.

It is a super-2 number, since 2×2120211001² = 8990589377522844002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120211011) 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, 46091521 + ... + 46091566.

It is an arithmetic number, because the mean of its divisors is an integer number (553098528).

Almost surely, 2^2120211001 is an apocalyptic number.

It is an amenable number.

2120211001 is a deficient number, since it is larger than the sum of its proper divisors (92183111).

2120211001 is an equidigital number, since it uses as much as digits as its factorization.

2120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92183110.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2120211001 is about 46045.7490003149. The cubic root of 2120211001 is about 1284.6742755697.

Adding to 2120211001 its reverse (1001120212), we get a palindrome (3121331213).

The spelling of 2120211001 in words is "two billion, one hundred twenty million, two hundred eleven thousand, one".