1220482655 has 16 divisors (see below), whose sum is σ = 1674490944. Its totient is φ = 836559360.

The previous prime is 1220482639. The next prime is 1220482657. The reversal of 1220482655 is 5562840221.

It is not a de Polignac number, because 1220482655 - 2⁴ = 1220482639 is a prime.

It is a super-2 number, since 2×1220482655² = 2979155822311698050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220482657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103649 + ... + 114821.

It is an arithmetic number, because the mean of its divisors is an integer number (104655684).

Almost surely, 2^1220482655 is an apocalyptic number.

1220482655 is a deficient number, since it is larger than the sum of its proper divisors (454008289).

1220482655 is a wasteful number, since it uses less digits than its factorization.

1220482655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14306.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 1220482655 is about 34935.4068961562. The cubic root of 1220482655 is about 1068.6706217393.

The spelling of 1220482655 in words is "one billion, two hundred twenty million, four hundred eighty-two thousand, six hundred fifty-five".