210011211122210 has 8 divisors (see below), whose sum is σ = 378020180019996. Its totient is φ = 84004484448880.

The previous prime is 210011211122201. The next prime is 210011211122287. The reversal of 210011211122210 is 12221112110012.

It can be written as a sum of positive squares in 2 ways, for example, as 194103661187881 + 15907549934329 = 13932109^2 + 3988427^2 .

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

It is a super-2 number, since 2×210011211122210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10500560556101 + ... + 10500560556120.

Almost surely, 2^{210011211122210} is an apocalyptic number.

210011211122210 is a deficient number, since it is larger than the sum of its proper divisors (168008968897786).

210011211122210 is a wasteful number, since it uses less digits than its factorization.

210011211122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21001121112228.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210011211122210 its reverse (12221112110012), we get a palindrome (222232323232222).

The spelling of 210011211122210 in words is "two hundred ten trillion, eleven billion, two hundred eleven million, one hundred twenty-two thousand, two hundred ten".