1002011212222 has 4 divisors (see below), whose sum is σ = 1503016818336. Its totient is φ = 501005606110.

The previous prime is 1002011212157. The next prime is 1002011212229. The reversal of 1002011212222 is 2222121102001.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1002011212196 and 1002011212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002011212229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250502803054 + ... + 250502803057.

It is an arithmetic number, because the mean of its divisors is an integer number (375754204584).

Almost surely, 2^{1002011212222} is an apocalyptic number.

1002011212222 is a deficient number, since it is larger than the sum of its proper divisors (501005606114).

1002011212222 is an equidigital number, since it uses as much as digits as its factorization.

1002011212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501005606113.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1002011212222 its reverse (2222121102001), we get a palindrome (3224132314223).

The spelling of 1002011212222 in words is "one trillion, two billion, eleven million, two hundred twelve thousand, two hundred twenty-two".