211010001120021 has 8 divisors (see below), whose sum is σ = 284507866679040. Its totient is φ = 139092734820512.

The previous prime is 211010001120001. The next prime is 211010001120059. The reversal of 211010001120021 is 120021100010112.

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 211010001120021 - 2⁷ = 211010001119893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211010001119979 and 211010001120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010001120001) 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, 395149814565 + ... + 395149815098.

It is an arithmetic number, because the mean of its divisors is an integer number (35563483334880).

Almost surely, 2^{211010001120021} is an apocalyptic number.

It is an amenable number.

211010001120021 is a deficient number, since it is larger than the sum of its proper divisors (73497865559019).

211010001120021 is an equidigital number, since it uses as much as digits as its factorization.

211010001120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790299629755.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211010001120021 its reverse (120021100010112), we get a palindrome (331031101130133).

The spelling of 211010001120021 in words is "two hundred eleven trillion, ten billion, one million, one hundred twenty thousand, twenty-one".