1225655322 has 16 divisors (see below), whose sum is σ = 2455565952. Its totient is φ = 407842560.

The previous prime is 1225655279. The next prime is 1225655357. The reversal of 1225655322 is 2235565221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173554 + ... + 180477.

It is an arithmetic number, because the mean of its divisors is an integer number (153472872).

Almost surely, 2^1225655322 is an apocalyptic number.

1225655322 is an abundant number, since it is smaller than the sum of its proper divisors (1229910630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225655322 is a wasteful number, since it uses less digits than its factorization.

1225655322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354613.

The product of its digits is 36000, while the sum is 33.

The square root of 1225655322 is about 35009.3604911601. The cubic root of 1225655322 is about 1070.1782455550.

The spelling of 1225655322 in words is "one billion, two hundred twenty-five million, six hundred fifty-five thousand, three hundred twenty-two".