210121010211 has 8 divisors (see below), whose sum is σ = 320184396544. Its totient is φ = 120069148680.

The previous prime is 210121010201. The next prime is 210121010243. The reversal of 210121010211 is 112010121012.

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

It is not a de Polignac number, because 210121010211 - 2⁶ = 210121010147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210121010201) 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, 5002881175 + ... + 5002881216.

It is an arithmetic number, because the mean of its divisors is an integer number (40023049568).

Almost surely, 2^210121010211 is an apocalyptic number.

210121010211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210121010211 is a deficient number, since it is larger than the sum of its proper divisors (110063386333).

210121010211 is a wasteful number, since it uses less digits than its factorization.

210121010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005762401.

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

Adding to 210121010211 its reverse (112010121012), we get a palindrome (322131131223).

The spelling of 210121010211 in words is "two hundred ten billion, one hundred twenty-one million, ten thousand, two hundred eleven".