21401210301 has 16 divisors (see below), whose sum is σ = 29524176000. Its totient is φ = 13773034688.

The previous prime is 21401210273. The next prime is 21401210317. The reversal of 21401210301 is 10301210412.

It is a cyclic number.

It is not a de Polignac number, because 21401210301 - 2¹⁸ = 21400948157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401910301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555475 + ... + 592751.

It is an arithmetic number, because the mean of its divisors is an integer number (1845261000).

Almost surely, 2^21401210301 is an apocalyptic number.

It is an amenable number.

21401210301 is a deficient number, since it is larger than the sum of its proper divisors (8122965699).

21401210301 is a wasteful number, since it uses less digits than its factorization.

21401210301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43908.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21401210301 its reverse (10301210412), we get a palindrome (31702420713).

The spelling of 21401210301 in words is "twenty-one billion, four hundred one million, two hundred ten thousand, three hundred one".