2002220122201 has 4 divisors (see below), whose sum is σ = 2156237054692. Its totient is φ = 1848203189712.

The previous prime is 2002220122169. The next prime is 2002220122241. The reversal of 2002220122201 is 1022210222002.

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 818093115225 + 1184127006976 = 904485^2 + 1088176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002220122201 - 2⁵ = 2002220122169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002220122241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 77008466226 + ... + 77008466251.

It is an arithmetic number, because the mean of its divisors is an integer number (539059263673).

Almost surely, 2^{2002220122201} is an apocalyptic number.

It is an amenable number.

2002220122201 is a deficient number, since it is larger than the sum of its proper divisors (154016932491).

2002220122201 is a wasteful number, since it uses less digits than its factorization.

2002220122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154016932490.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2002220122201 its reverse (1022210222002), we get a palindrome (3024430344203).

The spelling of 2002220122201 in words is "two trillion, two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred one".