722201214221 has 4 divisors (see below), whose sum is σ = 722206582944. Its totient is φ = 722195845500.

The previous prime is 722201214209. The next prime is 722201214227. The reversal of 722201214221 is 122412102227.

722201214221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-722201214221 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 (722201214227) 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, 2477255 + ... + 2753396.

It is an arithmetic number, because the mean of its divisors is an integer number (180551645736).

Almost surely, 2^722201214221 is an apocalyptic number.

It is an amenable number.

722201214221 is a deficient number, since it is larger than the sum of its proper divisors (5368723).

722201214221 is a wasteful number, since it uses less digits than its factorization.

722201214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368722.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 722201214221 its reverse (122412102227), we get a palindrome (844613316448).

The spelling of 722201214221 in words is "seven hundred twenty-two billion, two hundred one million, two hundred fourteen thousand, two hundred twenty-one".