21652261102 has 8 divisors (see below), whose sum is σ = 33356186136. Its totient is φ = 10533532392.

The previous prime is 21652261063. The next prime is 21652261117. The reversal of 21652261102 is 20116225612.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146298988 + ... + 146299135.

It is an arithmetic number, because the mean of its divisors is an integer number (4169523267).

Almost surely, 2^21652261102 is an apocalyptic number.

21652261102 is a deficient number, since it is larger than the sum of its proper divisors (11703925034).

21652261102 is a wasteful number, since it uses less digits than its factorization.

21652261102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292598162.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 21652261102 its reverse (20116225612), we get a palindrome (41768486714).

The spelling of 21652261102 in words is "twenty-one billion, six hundred fifty-two million, two hundred sixty-one thousand, one hundred two".