1212222201202 has 8 divisors (see below), whose sum is σ = 1925294084316. Its totient is φ = 570457506432.

The previous prime is 1212222201199. The next prime is 1212222201209. The reversal of 1212222201202 is 2021022222121.

It can be written as a sum of positive squares in 2 ways, for example, as 1186724818161 + 25497383041 = 1089369^2 + 159679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212222201202.

It is not an unprimeable number, because it can be changed into a prime (1212222201209) 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, 17826797043 + ... + 17826797110.

Almost surely, 2^{1212222201202} is an apocalyptic number.

1212222201202 is a deficient number, since it is larger than the sum of its proper divisors (713071883114).

1212222201202 is a wasteful number, since it uses less digits than its factorization.

1212222201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35653594172.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1212222201202 its reverse (2021022222121), we get a palindrome (3233244423323).

The spelling of 1212222201202 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, two hundred two".