1212201201 has 16 divisors (see below), whose sum is σ = 1733011200. Its totient is φ = 750966528.

The previous prime is 1212201191. The next prime is 1212201209. The reversal of 1212201201 is 1021022121.

It is not a de Polignac number, because 1212201201 - 2⁵ = 1212201169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212201209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146406 + ... + 154463.

It is an arithmetic number, because the mean of its divisors is an integer number (108313200).

Almost surely, 2^1212201201 is an apocalyptic number.

It is an amenable number.

1212201201 is a deficient number, since it is larger than the sum of its proper divisors (520809999).

1212201201 is a wasteful number, since it uses less digits than its factorization.

1212201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300968.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1212201201 is about 34816.6799250015. The cubic root of 1212201201 is about 1066.2480174251.

Adding to 1212201201 its reverse (1021022121), we get a palindrome (2233223322).

The spelling of 1212201201 in words is "one billion, two hundred twelve million, two hundred one thousand, two hundred one".