2122012001 has 4 divisors (see below), whose sum is σ = 2122110000. Its totient is φ = 2121914004.

The previous prime is 2122011973. The next prime is 2122012021. The reversal of 2122012001 is 1002102212.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2122012001 - 2¹⁸ = 2121749857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122012021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 65148.

It is an arithmetic number, because the mean of its divisors is an integer number (530527500).

Almost surely, 2^2122012001 is an apocalyptic number.

It is an amenable number.

2122012001 is a deficient number, since it is larger than the sum of its proper divisors (97999).

2122012001 is an equidigital number, since it uses as much as digits as its factorization.

2122012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97998.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2122012001 is about 46065.3014860426. The cubic root of 2122012001 is about 1285.0379254705.

Adding to 2122012001 its reverse (1002102212), we get a palindrome (3124114213).

The spelling of 2122012001 in words is "two billion, one hundred twenty-two million, twelve thousand, one".