1225022355 has 24 divisors (see below), whose sum is σ = 2124223920. Its totient is φ = 653083200.

The previous prime is 1225022347. The next prime is 1225022387. The reversal of 1225022355 is 5532205221.

1225022355 is a `hidden beast` number, since 122 + 502 + 2 + 35 + 5 = 666.

It is not a de Polignac number, because 1225022355 - 2³ = 1225022347 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169761 + ... + 176829.

It is an arithmetic number, because the mean of its divisors is an integer number (88509330).

Almost surely, 2^1225022355 is an apocalyptic number.

1225022355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1225022355 is a deficient number, since it is larger than the sum of its proper divisors (899201565).

1225022355 is a wasteful number, since it uses less digits than its factorization.

1225022355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931 (or 10928 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1225022355 is about 35000.3193556859. The cubic root of 1225022355 is about 1069.9939892521.

Adding to 1225022355 its reverse (5532205221), we get a palindrome (6757227576).

It can be divided in two parts, 122502 and 2355, that multiplied together give a triangular number (288492210 = T₂₄₀₂₀).

The spelling of 1225022355 in words is "one billion, two hundred twenty-five million, twenty-two thousand, three hundred fifty-five".