210101220211 has 8 divisors (see below), whose sum is σ = 212989916880. Its totient is φ = 207212810112.

The previous prime is 210101220181. The next prime is 210101220269. The reversal of 210101220211 is 112022101012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210101220211 is a prime.

It is a super-2 number, since 2×210101220211² (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 = 210101220191 and 210101220200.

It is not an unprimeable number, because it can be changed into a prime (210101220271) 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, 1705551 + ... + 1824583.

It is an arithmetic number, because the mean of its divisors is an integer number (26623739610).

Almost surely, 2^210101220211 is an apocalyptic number.

210101220211 is a deficient number, since it is larger than the sum of its proper divisors (2888696669).

210101220211 is a wasteful number, since it uses less digits than its factorization.

210101220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143285.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210101220211 its reverse (112022101012), we get a palindrome (322123321223).

The spelling of 210101220211 in words is "two hundred ten billion, one hundred one million, two hundred twenty thousand, two hundred eleven".