2201210121 has 8 divisors (see below), whose sum is σ = 3201760224. Its totient is φ = 1334066720.

The previous prime is 2201210117. The next prime is 2201210129. The reversal of 2201210121 is 1210121022.

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

It is a cyclic number.

It is not a de Polignac number, because 2201210121 - 2² = 2201210117 is a prime.

2201210121 is a modest number, since divided by 1210121 gives 22 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2201210097 and 2201210106.

It is not an unprimeable number, because it can be changed into a prime (2201210129) 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, 33351636 + ... + 33351701.

It is an arithmetic number, because the mean of its divisors is an integer number (400220028).

Almost surely, 2^2201210121 is an apocalyptic number.

It is an amenable number.

2201210121 is a deficient number, since it is larger than the sum of its proper divisors (1000550103).

2201210121 is a wasteful number, since it uses less digits than its factorization.

2201210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66703351.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2201210121 is about 46917.0557580077. The cubic root of 2201210121 is about 1300.8298687511.

Adding to 2201210121 its reverse (1210121022), we get a palindrome (3411331143).

The spelling of 2201210121 in words is "two billion, two hundred one million, two hundred ten thousand, one hundred twenty-one".