2002222212101 has 4 divisors (see below), whose sum is σ = 2008619088492. Its totient is φ = 1995825335712.

The previous prime is 2002222212097. The next prime is 2002222212103. The reversal of 2002222212101 is 1012122222002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 787816008100 + 1214406204001 = 887590^2 + 1102001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002222212101 - 2² = 2002222212097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002222212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002222212103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3198437726 + ... + 3198438351.

It is an arithmetic number, because the mean of its divisors is an integer number (502154772123).

Almost surely, 2^{2002222212101} is an apocalyptic number.

It is an amenable number.

2002222212101 is a deficient number, since it is larger than the sum of its proper divisors (6396876391).

2002222212101 is an equidigital number, since it uses as much as digits as its factorization.

2002222212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396876390.

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

Adding to 2002222212101 its reverse (1012122222002), we get a palindrome (3014344434103).

Subtracting from 2002222212101 its reverse (1012122222002), we obtain a palindrome (990099990099).

The spelling of 2002222212101 in words is "two trillion, two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred one".