2421205101 has 112 divisors (see below), whose sum is σ = 4427961600. Its totient is φ = 1320248160.

The previous prime is 2421205091. The next prime is 2421205109. The reversal of 2421205101 is 1015021242.

It is not a de Polignac number, because 2421205101 - 2¹⁰ = 2421204077 is a prime.

It is a super-2 number, since 2×2421205101² = 11724468282216840402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421205109) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5750871 + ... + 5751291.

Almost surely, 2^2421205101 is an apocalyptic number.

2421205101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2421205101 is a deficient number, since it is larger than the sum of its proper divisors (2006756499).

2421205101 is an frugal number, since it uses more digits than its factorization.

2421205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2421205101 is about 49205.7425612093. The cubic root of 2421205101 is about 1342.7975084228.

Adding to 2421205101 its reverse (1015021242), we get a palindrome (3436226343).

The spelling of 2421205101 in words is "two billion, four hundred twenty-one million, two hundred five thousand, one hundred one".