2102220111121 has 16 divisors (see below), whose sum is σ = 2267690838336. Its totient is φ = 1937287526976.

The previous prime is 2102220111097. The next prime is 2102220111133. The reversal of 2102220111121 is 1211110222012.

It is a cyclic number.

It is not a de Polignac number, because 2102220111121 - 2²¹ = 2102218013969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102220111095 and 2102220111104.

It is not an unprimeable number, because it can be changed into a prime (2102220111151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108335406 + ... + 108354808.

It is an arithmetic number, because the mean of its divisors is an integer number (141730677396).

Almost surely, 2^{2102220111121} is an apocalyptic number.

It is an amenable number.

2102220111121 is a deficient number, since it is larger than the sum of its proper divisors (165470727215).

2102220111121 is a wasteful number, since it uses less digits than its factorization.

2102220111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32832.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2102220111121 its reverse (1211110222012), we get a palindrome (3313330333133).

The spelling of 2102220111121 in words is "two trillion, one hundred two billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-one".