2102220010001 has 4 divisors (see below), whose sum is σ = 2102223200292. Its totient is φ = 2102216819712.

The previous prime is 2102220009973. The next prime is 2102220010027. The reversal of 2102220010001 is 1000100222012.

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 842384374225 + 1259835635776 = 917815^2 + 1122424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102220010001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102220010031) 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, 199976 + ... + 2060201.

It is an arithmetic number, because the mean of its divisors is an integer number (525555800073).

Almost surely, 2^{2102220010001} is an apocalyptic number.

It is an amenable number.

2102220010001 is a deficient number, since it is larger than the sum of its proper divisors (3190291).

2102220010001 is an equidigital number, since it uses as much as digits as its factorization.

2102220010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190290.

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

Adding to 2102220010001 its reverse (1000100222012), we get a palindrome (3102320232013).

The spelling of 2102220010001 in words is "two trillion, one hundred two billion, two hundred twenty million, ten thousand, one".