2100022220213 has 4 divisors (see below), whose sum is σ = 2103238181388. Its totient is φ = 2096806259040.

The previous prime is 2100022220167. The next prime is 2100022220243. The reversal of 2100022220213 is 3120222200012.

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 1064679339889 + 1035342880324 = 1031833^2 + 1017518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100022220213 - 2²² = 2100018025909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100022220191 and 2100022220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100022220243) 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, 1607979608 + ... + 1607980913.

It is an arithmetic number, because the mean of its divisors is an integer number (525809545347).

Almost surely, 2^{2100022220213} is an apocalyptic number.

It is an amenable number.

2100022220213 is a deficient number, since it is larger than the sum of its proper divisors (3215961175).

2100022220213 is an equidigital number, since it uses as much as digits as its factorization.

2100022220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215961174.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2100022220213 its reverse (3120222200012), we get a palindrome (5220244420225).

The spelling of 2100022220213 in words is "two trillion, one hundred billion, twenty-two million, two hundred twenty thousand, two hundred thirteen".