2122001010221 has 8 divisors (see below), whose sum is σ = 2190513494784. Its totient is φ = 2053492328160.

The previous prime is 2122001010163. The next prime is 2122001010257. The reversal of 2122001010221 is 1220101002212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122001010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122001010196 and 2122001010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122001010421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205850 + ... + 2070356.

It is an arithmetic number, because the mean of its divisors is an integer number (273814186848).

Almost surely, 2^{2122001010221} is an apocalyptic number.

It is an amenable number.

2122001010221 is a deficient number, since it is larger than the sum of its proper divisors (68512484563).

2122001010221 is a wasteful number, since it uses less digits than its factorization.

2122001010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901251.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2122001010221 its reverse (1220101002212), we get a palindrome (3342102012433).

The spelling of 2122001010221 in words is "two trillion, one hundred twenty-two billion, one million, ten thousand, two hundred twenty-one".