2221002122101 has 16 divisors (see below), whose sum is σ = 2738308633344. Its totient is φ = 1757926520064.

The previous prime is 2221002122093. The next prime is 2221002122161. The reversal of 2221002122101 is 1012212001222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2221002122101 - 2³ = 2221002122093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002122161) 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 15 ways as a sum of consecutive naturals, for example, 176068065 + ... + 176080678.

It is an arithmetic number, because the mean of its divisors is an integer number (171144289584).

Almost surely, 2^{2221002122101} is an apocalyptic number.

It is an amenable number.

2221002122101 is a deficient number, since it is larger than the sum of its proper divisors (517306511243).

2221002122101 is a wasteful number, since it uses less digits than its factorization.

2221002122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352148820.

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

Adding to 2221002122101 its reverse (1012212001222), we get a palindrome (3233214123323).

The spelling of 2221002122101 in words is "two trillion, two hundred twenty-one billion, two million, one hundred twenty-two thousand, one hundred one".