1212201100002 has 32 divisors (see below), whose sum is σ = 2476870804224. Its totient is φ = 395328416000.

The previous prime is 1212201099971. The next prime is 1212201100013. The reversal of 1212201100002 is 2000011022121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22552 + ... + 1557212.

It is an arithmetic number, because the mean of its divisors is an integer number (77402212632).

Almost surely, 2^{1212201100002} is an apocalyptic number.

1212201100002 is an abundant number, since it is smaller than the sum of its proper divisors (1264669704222).

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

1212201100002 is a wasteful number, since it uses less digits than its factorization.

1212201100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537514.

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

Adding to 1212201100002 its reverse (2000011022121), we get a palindrome (3212212122123).

The spelling of 1212201100002 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred thousand, two".