102220277665 has 8 divisors (see below), whose sum is σ = 133815636288. Its totient is φ = 74342020080.

The previous prime is 102220277639. The next prime is 102220277671. The reversal of 102220277665 is 566772022201.

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

It is not a de Polignac number, because 102220277665 - 2²³ = 102211889057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929275197 + ... + 929275306.

It is an arithmetic number, because the mean of its divisors is an integer number (16726954536).

Almost surely, 2^102220277665 is an apocalyptic number.

It is an amenable number.

102220277665 is a deficient number, since it is larger than the sum of its proper divisors (31595358623).

102220277665 is a wasteful number, since it uses less digits than its factorization.

102220277665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858550519.

The product of its (nonzero) digits is 141120, while the sum is 40.

Adding to 102220277665 its reverse (566772022201), we get a palindrome (668992299866).

The spelling of 102220277665 in words is "one hundred two billion, two hundred twenty million, two hundred seventy-seven thousand, six hundred sixty-five".