2123222001 has 8 divisors (see below), whose sum is σ = 2831854464. Its totient is φ = 1415035440.

The previous prime is 2123221993. The next prime is 2123222011. The reversal of 2123222001 is 1002223212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123222001 - 2³ = 2123221993 is a prime.

It is a Curzon number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100201 + ... + 119526.

It is an arithmetic number, because the mean of its divisors is an integer number (353981808).

Almost surely, 2^2123222001 is an apocalyptic number.

It is an amenable number.

2123222001 is a deficient number, since it is larger than the sum of its proper divisors (708632463).

2123222001 is a wasteful number, since it uses less digits than its factorization.

2123222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222951.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2123222001 is about 46078.4331439341. The cubic root of 2123222001 is about 1285.2821277405.

Adding to 2123222001 its reverse (1002223212), we get a palindrome (3125445213).

The spelling of 2123222001 in words is "two billion, one hundred twenty-three million, two hundred twenty-two thousand, one".