1221235202 has 16 divisors (see below), whose sum is σ = 2000551392. Its totient is φ = 554505120.

The previous prime is 1221235201. The next prime is 1221235207. The reversal of 1221235202 is 2025321221.

It is not an unprimeable number, because it can be changed into a prime (1221235201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9008 + ... + 50235.

It is an arithmetic number, because the mean of its divisors is an integer number (125034462).

Almost surely, 2^1221235202 is an apocalyptic number.

1221235202 is a deficient number, since it is larger than the sum of its proper divisors (779316190).

1221235202 is a wasteful number, since it uses less digits than its factorization.

1221235202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60193.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1221235202 is about 34946.1757850555. The cubic root of 1221235202 is about 1068.8902232850.

Adding to 1221235202 its reverse (2025321221), we get a palindrome (3246556423).

The spelling of 1221235202 in words is "one billion, two hundred twenty-one million, two hundred thirty-five thousand, two hundred two".