2122020001001 has 4 divisors (see below), whose sum is σ = 2151088768212. Its totient is φ = 2092951233792.

The previous prime is 2122020000983. The next prime is 2122020001027. The reversal of 2122020001001 is 1001000202212.

It is a happy number.

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 1218151482601 + 903868518400 = 1103699^2 + 950720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122020001001 - 2²² = 2122015806697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122020201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14534383496 + ... + 14534383641.

It is an arithmetic number, because the mean of its divisors is an integer number (537772192053).

Almost surely, 2^{2122020001001} is an apocalyptic number.

It is an amenable number.

2122020001001 is a deficient number, since it is larger than the sum of its proper divisors (29068767211).

2122020001001 is an equidigital number, since it uses as much as digits as its factorization.

2122020001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29068767210.

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

Adding to 2122020001001 its reverse (1001000202212), we get a palindrome (3123020203213).

The spelling of 2122020001001 in words is "two trillion, one hundred twenty-two billion, twenty million, one thousand, one".