2100121201 has 8 divisors (see below), whose sum is σ = 2115984384. Its totient is φ = 2084309760.

The previous prime is 2100121189. The next prime is 2100121253. The reversal of 2100121201 is 1021210012.

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 2100121201 - 2⁵ = 2100121169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100121271) 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, 70560 + ... + 95806.

It is an arithmetic number, because the mean of its divisors is an integer number (264498048).

Almost surely, 2^2100121201 is an apocalyptic number.

It is an amenable number.

2100121201 is a deficient number, since it is larger than the sum of its proper divisors (15863183).

2100121201 is a wasteful number, since it uses less digits than its factorization.

2100121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25871.

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

The square root of 2100121201 is about 45827.0793418040. The cubic root of 2100121201 is about 1280.6038006208.

Adding to 2100121201 its reverse (1021210012), we get a palindrome (3121331213).

The spelling of 2100121201 in words is "two billion, one hundred million, one hundred twenty-one thousand, two hundred one".