771321020222 has 8 divisors (see below), whose sum is σ = 1171626866400. Its totient is φ = 380778731424.

The previous prime is 771321020131. The next prime is 771321020243. The reversal of 771321020222 is 222020123177.

It is a happy number.

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

It is a super-2 number, since 2×771321020222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440889147 + ... + 2440889462.

It is an arithmetic number, because the mean of its divisors is an integer number (146453358300).

Almost surely, 2^771321020222 is an apocalyptic number.

771321020222 is a deficient number, since it is larger than the sum of its proper divisors (400305846178).

771321020222 is a wasteful number, since it uses less digits than its factorization.

771321020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881778690.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 771321020222 its reverse (222020123177), we get a palindrome (993341143399).

The spelling of 771321020222 in words is "seven hundred seventy-one billion, three hundred twenty-one million, twenty thousand, two hundred twenty-two".