2201100121 has 16 divisors (see below), whose sum is σ = 2423520000. Its totient is φ = 1982453200.

The previous prime is 2201100101. The next prime is 2201100127. The reversal of 2201100121 is 1210011022.

It is a cyclic number.

It is not a de Polignac number, because 2201100121 - 2¹⁹ = 2200575833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201100098 and 2201100107.

It is not an unprimeable number, because it can be changed into a prime (2201100127) 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, 1467630 + ... + 1469128.

It is an arithmetic number, because the mean of its divisors is an integer number (151470000).

Almost surely, 2^2201100121 is an apocalyptic number.

It is an amenable number.

2201100121 is a deficient number, since it is larger than the sum of its proper divisors (222419879).

2201100121 is a wasteful number, since it uses less digits than its factorization.

2201100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2201100121 is about 46915.8834617872. The cubic root of 2201100121 is about 1300.8081998113.

Adding to 2201100121 its reverse (1210011022), we get a palindrome (3411111143).

It can be divided in two parts, 22011001 and 21, that added together give a palindrome (22011022).

The spelling of 2201100121 in words is "two billion, two hundred one million, one hundred thousand, one hundred twenty-one".