1220100200002 has 4 divisors (see below), whose sum is σ = 1830150300006. Its totient is φ = 610050100000.

The previous prime is 1220100199993. The next prime is 1220100200069. The reversal of 1220100200002 is 2000020010221.

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

It can be written as a sum of positive squares in only one way, i.e., 715291371001 + 504808829001 = 845749^2 + 710499^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305025049999 + ... + 305025050002.

Almost surely, 2^{1220100200002} is an apocalyptic number.

1220100200002 is a deficient number, since it is larger than the sum of its proper divisors (610050100004).

1220100200002 is an equidigital number, since it uses as much as digits as its factorization.

1220100200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610050100003.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1220100200002 its reverse (2000020010221), we get a palindrome (3220120210223).

The spelling of 1220100200002 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred thousand, two".