1201212203 has 4 divisors (see below), whose sum is σ = 1206196728. Its totient is φ = 1196227680.

The previous prime is 1201212169. The next prime is 1201212209. The reversal of 1201212203 is 3022121021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201212203 is a prime.

It is a super-2 number, since 2×1201212203² = 2885821513272226418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201212209) 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, 2491901 + ... + 2492382.

It is an arithmetic number, because the mean of its divisors is an integer number (301549182).

Almost surely, 2^1201212203 is an apocalyptic number.

1201212203 is a deficient number, since it is larger than the sum of its proper divisors (4984525).

1201212203 is an equidigital number, since it uses as much as digits as its factorization.

1201212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984524.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1201212203 is about 34658.5083781746. The cubic root of 1201212203 is about 1063.0162704038.

Adding to 1201212203 its reverse (3022121021), we get a palindrome (4223333224).

The spelling of 1201212203 in words is "one billion, two hundred one million, two hundred twelve thousand, two hundred three".