211001330021 has 8 divisors (see below), whose sum is σ = 222155968320. Its totient is φ = 199851622272.

The previous prime is 211001329993. The next prime is 211001330051. The reversal of 211001330021 is 120033100112.

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 211001330021 - 2¹⁴ = 211001313637 is a prime.

It is a super-2 number, since 2×211001330021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211001329978 and 211001330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001330051) 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, 1144625 + ... + 1316118.

It is an arithmetic number, because the mean of its divisors is an integer number (27769496040).

Almost surely, 2^211001330021 is an apocalyptic number.

It is an amenable number.

211001330021 is a deficient number, since it is larger than the sum of its proper divisors (11154638299).

211001330021 is a wasteful number, since it uses less digits than its factorization.

211001330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465275.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211001330021 its reverse (120033100112), we get a palindrome (331034430133).

The spelling of 211001330021 in words is "two hundred eleven billion, one million, three hundred thirty thousand, twenty-one".