21110133201 has 8 divisors (see below), whose sum is σ = 28155574080. Its totient is φ = 14069057232.

The previous prime is 21110133193. The next prime is 21110133203. The reversal of 21110133201 is 10233101112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21110133201 - 2³ = 21110133193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110133203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079925 + ... + 1099298.

It is an arithmetic number, because the mean of its divisors is an integer number (3519446760).

Almost surely, 2^21110133201 is an apocalyptic number.

It is an amenable number.

21110133201 is a deficient number, since it is larger than the sum of its proper divisors (7045440879).

21110133201 is a wasteful number, since it uses less digits than its factorization.

21110133201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182455.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21110133201 its reverse (10233101112), we get a palindrome (31343234313).

The spelling of 21110133201 in words is "twenty-one billion, one hundred ten million, one hundred thirty-three thousand, two hundred one".