201210111121210 has 16 divisors (see below), whose sum is σ = 362179960196616. Its totient is φ = 80483653297728.

The previous prime is 201210111121093. The next prime is 201210111121219. The reversal of 201210111121210 is 12121111012102.

It can be written as a sum of positive squares in 4 ways, for example, as 200871292830649 + 338818290561 = 14172907^2 + 582081^2 .

It is a super-2 number, since 2×201210111121210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201210111121219) 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, 46728777 + ... + 50852716.

Almost surely, 2^{201210111121210} is an apocalyptic number.

201210111121210 is a deficient number, since it is larger than the sum of its proper divisors (160969849075406).

201210111121210 is a wasteful number, since it uses less digits than its factorization.

201210111121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97787697.

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

Adding to 201210111121210 its reverse (12121111012102), we get a palindrome (213331222133312).

The spelling of 201210111121210 in words is "two hundred one trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred ten".