1220112021002 has 64 divisors (see below), whose sum is σ = 2219166996480. Its totient is φ = 491466574656.

The previous prime is 1220112020989. The next prime is 1220112021013. The reversal of 1220112021002 is 2001202110221.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 31 ways as a sum of consecutive naturals, for example, 23206448 + ... + 23258964.

It is an arithmetic number, because the mean of its divisors is an integer number (34674484320).

Almost surely, 2^{1220112021002} is an apocalyptic number.

1220112021002 is a deficient number, since it is larger than the sum of its proper divisors (999054975478).

1220112021002 is a wasteful number, since it uses less digits than its factorization.

1220112021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53235.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220112021002 its reverse (2001202110221), we get a palindrome (3221314131223).

The spelling of 1220112021002 in words is "one trillion, two hundred twenty billion, one hundred twelve million, twenty-one thousand, two".