1212211100002 has 32 divisors (see below), whose sum is σ = 2126594460672. Its totient is φ = 507391640784.

The previous prime is 1212211099993. The next prime is 1212211100003. The reversal of 1212211100002 is 2000011122121.

It is not an unprimeable number, because it can be changed into a prime (1212211100003) 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, 7093203 + ... + 7262089.

It is an arithmetic number, because the mean of its divisors is an integer number (66456076896).

Almost surely, 2^{1212211100002} is an apocalyptic number.

1212211100002 is a deficient number, since it is larger than the sum of its proper divisors (914383360670).

1212211100002 is a wasteful number, since it uses less digits than its factorization.

1212211100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180862.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212211100002 its reverse (2000011122121), we get a palindrome (3212222222123).

The spelling of 1212211100002 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred thousand, two".