1212221032 has 32 divisors (see below), whose sum is σ = 2480940000. Its totient is φ = 550699200.

The previous prime is 1212221011. The next prime is 1212221053. The reversal of 1212221032 is 2301222121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212221011) and next prime (1212221053).

It is a junction number, because it is equal to n+sod(n) for n = 1212220997 and 1212221015.

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, 239407 + ... + 244417.

It is an arithmetic number, because the mean of its divisors is an integer number (77529375).

Almost surely, 2^1212221032 is an apocalyptic number.

It is an amenable number.

1212221032 is an abundant number, since it is smaller than the sum of its proper divisors (1268718968).

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

1212221032 is a wasteful number, since it uses less digits than its factorization.

1212221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777 (or 7773 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1212221032 is about 34816.9647154947. The cubic root of 1212221032 is about 1066.2538318199.

Adding to 1212221032 its reverse (2301222121), we get a palindrome (3513443153).

The spelling of 1212221032 in words is "one billion, two hundred twelve million, two hundred twenty-one thousand, thirty-two".