1222102655 has 8 divisors (see below), whose sum is σ = 1469928384. Its totient is φ = 975412000.

The previous prime is 1222102639. The next prime is 1222102657. The reversal of 1222102655 is 5562012221.

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

It is not a de Polignac number, because 1222102655 - 2⁴ = 1222102639 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 (1222102657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281396 + ... + 285705.

It is an arithmetic number, because the mean of its divisors is an integer number (183741048).

Almost surely, 2^1222102655 is an apocalyptic number.

1222102655 is a deficient number, since it is larger than the sum of its proper divisors (247825729).

1222102655 is an equidigital number, since it uses as much as digits as its factorization.

1222102655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567537.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1222102655 is about 34958.5848540813. The cubic root of 1222102655 is about 1069.1432437734.

Adding to 1222102655 its reverse (5562012221), we get a palindrome (6784114876).

The spelling of 1222102655 in words is "one billion, two hundred twenty-two million, one hundred two thousand, six hundred fifty-five".