2222132121 has 24 divisors (see below), whose sum is σ = 3504540000. Its totient is φ = 1345593600.

The previous prime is 2222132093. The next prime is 2222132149. The reversal of 2222132121 is 1212312222.

It is an interprime number because it is at equal distance from previous prime (2222132093) and next prime (2222132149).

It is not a de Polignac number, because 2222132121 - 2⁶ = 2222132057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2222132094 and 2222132103.

It is not an unprimeable number, because it can be changed into a prime (2222132161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114666 + ... + 132636.

It is an arithmetic number, because the mean of its divisors is an integer number (146022500).

Almost surely, 2^2222132121 is an apocalyptic number.

It is an amenable number.

2222132121 is a deficient number, since it is larger than the sum of its proper divisors (1282407879).

2222132121 is a wasteful number, since it uses less digits than its factorization.

2222132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19237 (or 19234 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2222132121 is about 47139.4964016376. The cubic root of 2222132121 is about 1304.9382434333.

Adding to 2222132121 its reverse (1212312222), we get a palindrome (3434444343).

The spelling of 2222132121 in words is "two billion, two hundred twenty-two million, one hundred thirty-two thousand, one hundred twenty-one".