1222435152 has 100 divisors (see below), whose sum is σ = 3652333696. Its totient is φ = 394320960.

The previous prime is 1222435141. The next prime is 1222435163. The reversal of 1222435152 is 2515342221.

1222435152 is a `hidden beast` number, since 1 + 222 + 435 + 1 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1222435141) and next prime (1222435163).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 24963 + ... + 55389.

Almost surely, 2^1222435152 is an apocalyptic number.

1222435152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222435152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1826166848).

1222435152 is an abundant number, since it is smaller than the sum of its proper divisors (2429898544).

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

1222435152 is a wasteful number, since it uses less digits than its factorization.

1222435152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30478 (or 30463 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1222435152 is about 34963.3401150405. The cubic root of 1222435152 is about 1069.2401954453.

Adding to 1222435152 its reverse (2515342221), we get a palindrome (3737777373).

The spelling of 1222435152 in words is "one billion, two hundred twenty-two million, four hundred thirty-five thousand, one hundred fifty-two".