2102223120121 has 4 divisors (see below), whose sum is σ = 2117347027600. Its totient is φ = 2087099212644.

The previous prime is 2102223120097. The next prime is 2102223120131. The reversal of 2102223120121 is 1210213222012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102223120121 - 2⁵ = 2102223120089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102223120131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7561953531 + ... + 7561953808.

It is an arithmetic number, because the mean of its divisors is an integer number (529336756900).

Almost surely, 2^{2102223120121} is an apocalyptic number.

It is an amenable number.

2102223120121 is a deficient number, since it is larger than the sum of its proper divisors (15123907479).

2102223120121 is a wasteful number, since it uses less digits than its factorization.

2102223120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15123907478.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2102223120121 its reverse (1210213222012), we get a palindrome (3312436342133).

The spelling of 2102223120121 in words is "two trillion, one hundred two billion, two hundred twenty-three million, one hundred twenty thousand, one hundred twenty-one".