21232230201 has 192 divisors, whose sum is σ = 40419025920. Its totient is φ = 10441267200.

The previous prime is 21232230179. The next prime is 21232230209. The reversal of 21232230201 is 10203223212.

21232230201 is a `hidden beast` number, since 2 + 1 + 232 + 230 + 201 = 666.

It is not a de Polignac number, because 21232230201 - 2¹¹ = 21232228153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21232230209) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 127139020 + ... + 127139186.

It is an arithmetic number, because the mean of its divisors is an integer number (210515760).

Almost surely, 2^21232230201 is an apocalyptic number.

21232230201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21232230201 is a deficient number, since it is larger than the sum of its proper divisors (19186795719).

21232230201 is a wasteful number, since it uses less digits than its factorization.

21232230201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21232230201 its reverse (10203223212), we get a palindrome (31435453413).

The spelling of 21232230201 in words is "twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, two hundred one".