1220014655 has 32 divisors (see below), whose sum is σ = 1536796800. Its totient is φ = 928972800.

The previous prime is 1220014651. The next prime is 1220014661. The reversal of 1220014655 is 5564100221.

It is not a de Polignac number, because 1220014655 - 2² = 1220014651 is a prime.

It is a super-3 number, since 3×1220014655³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220014651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1586111 + ... + 1586879.

It is an arithmetic number, because the mean of its divisors is an integer number (48024900).

Almost surely, 2^1220014655 is an apocalyptic number.

1220014655 is a deficient number, since it is larger than the sum of its proper divisors (316782145).

1220014655 is a wasteful number, since it uses less digits than its factorization.

1220014655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

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

The square root of 1220014655 is about 34928.7081782307. The cubic root of 1220014655 is about 1068.5340086299.

Adding to 1220014655 its reverse (5564100221), we get a palindrome (6784114876).

The spelling of 1220014655 in words is "one billion, two hundred twenty million, fourteen thousand, six hundred fifty-five".