2421101 has 4 divisors (see below), whose sum is σ = 2437500. Its totient is φ = 2404704.

The previous prime is 2421077. The next prime is 2421109. The reversal of 2421101 is 1011242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808201 + 1612900 = 899^2 + 1270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421101 is a prime.

It is a pancake number, because a pancake can be divided into 2421101 parts by 2200 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7976 + ... + 8273.

It is an arithmetic number, because the mean of its divisors is an integer number (609375).

2^2421101 is an apocalyptic number.

It is an amenable number.

2421101 is a deficient number, since it is larger than the sum of its proper divisors (16399).

2421101 is a wasteful number, since it uses less digits than its factorization.

2421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16398.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2421101 is about 1555.9887531727. The cubic root of 2421101 is about 134.2778263383.

Adding to 2421101 its reverse (1011242), we get a palindrome (3432343).

The spelling of 2421101 in words is "two million, four hundred twenty-one thousand, one hundred one".