700220221 has 4 divisors (see below), whose sum is σ = 703225692. Its totient is φ = 697214752.

The previous prime is 700220197. The next prime is 700220249. The reversal of 700220221 is 122022007.

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 203376121 + 496844100 = 14261^2 + 22290^2 .

It is a cyclic number.

It is not a de Polignac number, because 700220221 - 2⁵ = 700220189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 700220195 and 700220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700220291) 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, 1502386 + ... + 1502851.

It is an arithmetic number, because the mean of its divisors is an integer number (175806423).

Almost surely, 2^700220221 is an apocalyptic number.

It is an amenable number.

700220221 is a deficient number, since it is larger than the sum of its proper divisors (3005471).

700220221 is a wasteful number, since it uses less digits than its factorization.

700220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005470.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 700220221 is about 26461.6745690820. The cubic root of 700220221 is about 887.9971039357.

Adding to 700220221 its reverse (122022007), we get a palindrome (822242228).

The spelling of 700220221 in words is "seven hundred million, two hundred twenty thousand, two hundred twenty-one".