2220121111002 has 32 divisors (see below), whose sum is σ = 4450429609344. Its totient is φ = 738344376000.

The previous prime is 2220121110947. The next prime is 2220121111003. The reversal of 2220121111002 is 2001111210222.

2220121111002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2220121111003) 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, 4445752 + ... + 4919852.

It is an arithmetic number, because the mean of its divisors is an integer number (139075925292).

Almost surely, 2^{2220121111002} is an apocalyptic number.

2220121111002 is an abundant number, since it is smaller than the sum of its proper divisors (2230308498342).

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

2220121111002 is a wasteful number, since it uses less digits than its factorization.

2220121111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475894.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2220121111002 its reverse (2001111210222), we get a palindrome (4221232321224).

The spelling of 2220121111002 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred eleven thousand, two".