21114024201 has 6 divisors (see below), whose sum is σ = 30498034970. Its totient is φ = 14076016128.

The previous prime is 21114024119. The next prime is 21114024209. The reversal of 21114024201 is 10242041112.

It can be written as a sum of positive squares in only one way, i.e., 14353238025 + 6760786176 = 119805^2 + 82224^2 .

It is not a de Polignac number, because 21114024201 - 2²¹ = 21111927049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114024209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1173001336 + ... + 1173001353.

Almost surely, 2^21114024201 is an apocalyptic number.

It is an amenable number.

21114024201 is a deficient number, since it is larger than the sum of its proper divisors (9384010769).

21114024201 is a wasteful number, since it uses less digits than its factorization.

21114024201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346002695 (or 2346002692 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21114024201 its reverse (10242041112), we get a palindrome (31356065313).

The spelling of 21114024201 in words is "twenty-one billion, one hundred fourteen million, twenty-four thousand, two hundred one".