2130223221121 has 4 divisors (see below), whose sum is σ = 2151314540244. Its totient is φ = 2109131902000.

The previous prime is 2130223221043. The next prime is 2130223221157. The reversal of 2130223221121 is 1211223220312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 998978261121 + 1131244960000 = 999489^2 + 1063600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130223221121 - 2¹⁷ = 2130223090049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130223221092 and 2130223221101.

It is not an unprimeable number, because it can be changed into a prime (2130223291121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10545659410 + ... + 10545659611.

It is an arithmetic number, because the mean of its divisors is an integer number (537828635061).

Almost surely, 2^{2130223221121} is an apocalyptic number.

It is an amenable number.

2130223221121 is a deficient number, since it is larger than the sum of its proper divisors (21091319123).

2130223221121 is a wasteful number, since it uses less digits than its factorization.

2130223221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21091319122.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2130223221121 its reverse (1211223220312), we get a palindrome (3341446441433).

The spelling of 2130223221121 in words is "two trillion, one hundred thirty billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty-one".