2101213331 has 8 divisors (see below), whose sum is σ = 2437228800. Its totient is φ = 1774158408.

The previous prime is 2101213307. The next prime is 2101213333. The reversal of 2101213331 is 1333121012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101213331 - 2²⁶ = 2034104467 is a prime.

It is a super-2 number, since 2×2101213331² = 8830194924744231122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101213333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2239631 + ... + 2240568.

It is an arithmetic number, because the mean of its divisors is an integer number (304653600).

Almost surely, 2^2101213331 is an apocalyptic number.

2101213331 is a deficient number, since it is larger than the sum of its proper divisors (336015469).

2101213331 is an equidigital number, since it uses as much as digits as its factorization.

2101213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480273.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2101213331 is about 45838.9935644316. The cubic root of 2101213331 is about 1280.8257470909.

Adding to 2101213331 its reverse (1333121012), we get a palindrome (3434334343).

It can be divided in two parts, 21012 and 13331, that added together give a palindrome (34343).

The spelling of 2101213331 in words is "two billion, one hundred one million, two hundred thirteen thousand, three hundred thirty-one".