1222203252 has 12 divisors (see below), whose sum is σ = 2851807616. Its totient is φ = 407401080.

The previous prime is 1222203251. The next prime is 1222203341. The reversal of 1222203252 is 2523022221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222203251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50925124 + ... + 50925147.

Almost surely, 2^1222203252 is an apocalyptic number.

1222203252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222203252 is an abundant number, since it is smaller than the sum of its proper divisors (1629604364).

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

1222203252 is a wasteful number, since it uses less digits than its factorization.

1222203252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101850278 (or 101850276 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1222203252 is about 34960.0236269943. The cubic root of 1222203252 is about 1069.1725783664.

Adding to 1222203252 its reverse (2523022221), we get a palindrome (3745225473).

The spelling of 1222203252 in words is "one billion, two hundred twenty-two million, two hundred three thousand, two hundred fifty-two".