1228670228055 has 32 divisors (see below), whose sum is σ = 1970607605760. Its totient is φ = 653713258880.

The previous prime is 1228670228053. The next prime is 1228670228059. The reversal of 1228670228055 is 5508220768221.

It is a happy number.

It is not a de Polignac number, because 1228670228055 - 2¹ = 1228670228053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1228670227995 and 1228670228013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228670228053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23850025 + ... + 23901485.

It is an arithmetic number, because the mean of its divisors is an integer number (61581487680).

Almost surely, 2^{1228670228055} is an apocalyptic number.

1228670228055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1228670228055 is a deficient number, since it is larger than the sum of its proper divisors (741937377705).

1228670228055 is a wasteful number, since it uses less digits than its factorization.

1228670228055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55271.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 1228670228055 in words is "one trillion, two hundred twenty-eight billion, six hundred seventy million, two hundred twenty-eight thousand, fifty-five".