2122002110221 has 16 divisors (see below), whose sum is σ = 2443858293888. Its totient is φ = 1804826462400.

The previous prime is 2122002110177. The next prime is 2122002110233. The reversal of 2122002110221 is 1220112002212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2122002110221 - 2¹³ = 2122002102029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122002110195 and 2122002110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122002110251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11917911 + ... + 12094651.

It is an arithmetic number, because the mean of its divisors is an integer number (152741143368).

Almost surely, 2^{2122002110221} is an apocalyptic number.

It is an amenable number.

2122002110221 is a deficient number, since it is larger than the sum of its proper divisors (321856183667).

2122002110221 is a wasteful number, since it uses less digits than its factorization.

2122002110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189972.

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

Adding to 2122002110221 its reverse (1220112002212), we get a palindrome (3342114112433).

The spelling of 2122002110221 in words is "two trillion, one hundred twenty-two billion, two million, one hundred ten thousand, two hundred twenty-one".