210011220111121 has 32 divisors (see below), whose sum is σ = 257861717729280. Its totient is φ = 168303728577600.

The previous prime is 210011220111103. The next prime is 210011220111127. The reversal of 210011220111121 is 121111022110012.

It is not a de Polignac number, because 210011220111121 - 2⁵ = 210011220111089 is a prime.

It is a super-3 number, since 3×210011220111121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210011220111095 and 210011220111104.

It is not an unprimeable number, because it can be changed into a prime (210011220111127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48521001 + ... + 52671718.

It is an arithmetic number, because the mean of its divisors is an integer number (8058178679040).

Almost surely, 2^{210011220111121} is an apocalyptic number.

It is an amenable number.

210011220111121 is a deficient number, since it is larger than the sum of its proper divisors (47850497618159).

210011220111121 is a wasteful number, since it uses less digits than its factorization.

210011220111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101193397.

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

Adding to 210011220111121 its reverse (121111022110012), we get a palindrome (331122242221133).

The spelling of 210011220111121 in words is "two hundred ten trillion, eleven billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-one".