1222355052 has 18 divisors (see below), whose sum is σ = 3089842028. Its totient is φ = 407451672.

The previous prime is 1222355011. The next prime is 1222355081. The reversal of 1222355052 is 2505532221.

1222355052 is a `hidden beast` number, since 122 + 2 + 35 + 505 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16977118 + ... + 16977189.

Almost surely, 2^1222355052 is an apocalyptic number.

1222355052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222355052 is an abundant number, since it is smaller than the sum of its proper divisors (1867486976).

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

1222355052 is a wasteful number, since it uses less digits than its factorization.

1222355052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33954317 (or 33954312 counting only the distinct ones).

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

The square root of 1222355052 is about 34962.1946107506. The cubic root of 1222355052 is about 1069.2168409658.

Adding to 1222355052 its reverse (2505532221), we get a palindrome (3727887273).

The spelling of 1222355052 in words is "one billion, two hundred twenty-two million, three hundred fifty-five thousand, fifty-two".