2101120213 has 4 divisors (see below), whose sum is σ = 2136732480. Its totient is φ = 2065507948.

The previous prime is 2101120211. The next prime is 2101120243. The reversal of 2101120213 is 3120211012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2101120213 - 2¹ = 2101120211 is a prime.

It is a super-2 number, since 2×2101120213² = 8829412298954330738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101120193 and 2101120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101120211) 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, 17806045 + ... + 17806162.

It is an arithmetic number, because the mean of its divisors is an integer number (534183120).

Almost surely, 2^2101120213 is an apocalyptic number.

It is an amenable number.

2101120213 is a deficient number, since it is larger than the sum of its proper divisors (35612267).

2101120213 is an equidigital number, since it uses as much as digits as its factorization.

2101120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35612266.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2101120213 is about 45837.9778458867. The cubic root of 2101120213 is about 1280.8068263255.

Adding to 2101120213 its reverse (3120211012), we get a palindrome (5221331225).

The spelling of 2101120213 in words is "two billion, one hundred one million, one hundred twenty thousand, two hundred thirteen".