1220012222002 has 16 divisors (see below), whose sum is σ = 2097476763840. Its totient is φ = 521355570768.

The previous prime is 1220012221999. The next prime is 1220012222003. The reversal of 1220012222002 is 2002222100221.

It is not an unprimeable number, because it can be changed into a prime (1220012222003) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 125562477 + ... + 125572192.

It is an arithmetic number, because the mean of its divisors is an integer number (131092297740).

Almost surely, 2^{1220012222002} is an apocalyptic number.

1220012222002 is a deficient number, since it is larger than the sum of its proper divisors (877464541838).

1220012222002 is a wasteful number, since it uses less digits than its factorization.

1220012222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251135025.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1220012222002 its reverse (2002222100221), we get a palindrome (3222234322223).

The spelling of 1220012222002 in words is "one trillion, two hundred twenty billion, twelve million, two hundred twenty-two thousand, two".