21800270107 has 8 divisors (see below), whose sum is σ = 27179557632. Its totient is φ = 16987223400.

The previous prime is 21800270053. The next prime is 21800270117. The reversal of 21800270107 is 70107200812.

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

It is not a de Polignac number, because 21800270107 - 2⁷ = 21800269979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21800270117) 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, 141560119 + ... + 141560272.

It is an arithmetic number, because the mean of its divisors is an integer number (3397444704).

Almost surely, 2^21800270107 is an apocalyptic number.

21800270107 is a deficient number, since it is larger than the sum of its proper divisors (5379287525).

21800270107 is a wasteful number, since it uses less digits than its factorization.

21800270107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283120409.

The product of its (nonzero) digits is 1568, while the sum is 28.

Adding to 21800270107 its reverse (70107200812), we get a palindrome (91907470919).

The spelling of 21800270107 in words is "twenty-one billion, eight hundred million, two hundred seventy thousand, one hundred seven".