2123222051 has 16 divisors (see below), whose sum is σ = 2293315200. Its totient is φ = 1959225408.

The previous prime is 2123222033. The next prime is 2123222071. The reversal of 2123222051 is 1502223212.

It is a cyclic number.

It is not a de Polignac number, because 2123222051 - 2¹⁰ = 2123221027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306215 + ... + 313071.

It is an arithmetic number, because the mean of its divisors is an integer number (143332200).

Almost surely, 2^2123222051 is an apocalyptic number.

2123222051 is a deficient number, since it is larger than the sum of its proper divisors (170093149).

2123222051 is a wasteful number, since it uses less digits than its factorization.

2123222051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2123222051 is about 46078.4336864872. The cubic root of 2123222051 is about 1285.2821378295.

Adding to 2123222051 its reverse (1502223212), we get a palindrome (3625445263).

The spelling of 2123222051 in words is "two billion, one hundred twenty-three million, two hundred twenty-two thousand, fifty-one".