2210221200121 has 8 divisors (see below), whose sum is σ = 2414466984384. Its totient is φ = 2006528179920.

The previous prime is 2210221200097. The next prime is 2210221200127. The reversal of 2210221200121 is 1210021220122.

It is a happy number.

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

It is not a de Polignac number, because 2210221200121 - 2³⁷ = 2072782246649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210221200095 and 2210221200104.

It is not an unprimeable number, because it can be changed into a prime (2210221200127) 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, 138182650 + ... + 138198643.

It is an arithmetic number, because the mean of its divisors is an integer number (301808373048).

Almost surely, 2^{2210221200121} is an apocalyptic number.

It is an amenable number.

2210221200121 is a deficient number, since it is larger than the sum of its proper divisors (204245784263).

2210221200121 is a wasteful number, since it uses less digits than its factorization.

2210221200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276382031.

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

Adding to 2210221200121 its reverse (1210021220122), we get a palindrome (3420242420243).

The spelling of 2210221200121 in words is "two trillion, two hundred ten billion, two hundred twenty-one million, two hundred thousand, one hundred twenty-one".