2120210022001 has 4 divisors (see below), whose sum is σ = 2171922461604. Its totient is φ = 2068497582400.

The previous prime is 2120210021999. The next prime is 2120210022017. The reversal of 2120210022001 is 1002200120212.

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 109429301601 + 2010780720400 = 330801^2 + 1418020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120210022001 - 2¹ = 2120210021999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120210022031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25856219740 + ... + 25856219821.

It is an arithmetic number, because the mean of its divisors is an integer number (542980615401).

Almost surely, 2^{2120210022001} is an apocalyptic number.

It is an amenable number.

2120210022001 is a deficient number, since it is larger than the sum of its proper divisors (51712439603).

2120210022001 is an equidigital number, since it uses as much as digits as its factorization.

2120210022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51712439602.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2120210022001 its reverse (1002200120212), we get a palindrome (3122410142213).

The spelling of 2120210022001 in words is "two trillion, one hundred twenty billion, two hundred ten million, twenty-two thousand, one".