1002012221222 has 16 divisors (see below), whose sum is σ = 1594883328192. Its totient is φ = 470512302720.

The previous prime is 1002012221209. The next prime is 1002012221257. The reversal of 1002012221222 is 2221222102001.

It is a happy number.

1002012221222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1002012221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31948478 + ... + 31979825.

It is an arithmetic number, because the mean of its divisors is an integer number (99680208012).

Almost surely, 2^{1002012221222} is an apocalyptic number.

1002012221222 is a deficient number, since it is larger than the sum of its proper divisors (592871106970).

1002012221222 is a wasteful number, since it uses less digits than its factorization.

1002012221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63928783.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1002012221222 its reverse (2221222102001), we get a palindrome (3223234323223).

The spelling of 1002012221222 in words is "one trillion, two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".