2068512221 has 4 divisors (see below), whose sum is σ = 2094696000. Its totient is φ = 2042328444.

The previous prime is 2068512161. The next prime is 2068512223. The reversal of 2068512221 is 1222158602.

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 2068512221 - 2¹⁴ = 2068495837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068512223) 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, 13091771 + ... + 13091928.

It is an arithmetic number, because the mean of its divisors is an integer number (523674000).

Almost surely, 2^2068512221 is an apocalyptic number.

It is an amenable number.

2068512221 is a deficient number, since it is larger than the sum of its proper divisors (26183779).

2068512221 is an equidigital number, since it uses as much as digits as its factorization.

2068512221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26183778.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 2068512221 is about 45480.8995183692. The cubic root of 2068512221 is about 1274.1464944698.

The spelling of 2068512221 in words is "two billion, sixty-eight million, five hundred twelve thousand, two hundred twenty-one".