2100220212001 has 4 divisors (see below), whose sum is σ = 2134650051604. Its totient is φ = 2065790372400.

The previous prime is 2100220211923. The next prime is 2100220212023. The reversal of 2100220212001 is 1002120220012.

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 911215339776 + 1189004872225 = 954576^2 + 1090415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100220212001 - 2²¹ = 2100218114849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100220212031) 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, 17214919710 + ... + 17214919831.

It is an arithmetic number, because the mean of its divisors is an integer number (533662512901).

Almost surely, 2^{2100220212001} is an apocalyptic number.

It is an amenable number.

2100220212001 is a deficient number, since it is larger than the sum of its proper divisors (34429839603).

2100220212001 is an equidigital number, since it uses as much as digits as its factorization.

2100220212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34429839602.

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

Adding to 2100220212001 its reverse (1002120220012), we get a palindrome (3102340432013).

The spelling of 2100220212001 in words is "two trillion, one hundred billion, two hundred twenty million, two hundred twelve thousand, one".