2210121110121 has 8 divisors (see below), whose sum is σ = 2954250889344. Its totient is φ = 1469702702160.

The previous prime is 2210121110063. The next prime is 2210121110143. The reversal of 2210121110121 is 1210111210122.

It is a happy number.

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

It is not a de Polignac number, because 2210121110121 - 2⁷ = 2210121109993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2210121110121.

It is not an unprimeable number, because it can be changed into a prime (2210121110321) 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, 927841425 + ... + 927843806.

It is an arithmetic number, because the mean of its divisors is an integer number (369281361168).

Almost surely, 2^{2210121110121} is an apocalyptic number.

It is an amenable number.

2210121110121 is a deficient number, since it is larger than the sum of its proper divisors (744129779223).

2210121110121 is a wasteful number, since it uses less digits than its factorization.

2210121110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855685631.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2210121110121 its reverse (1210111210122), we get a palindrome (3420232320243).

The spelling of 2210121110121 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".