21301752122 has 8 divisors (see below), whose sum is σ = 36517289376. Its totient is φ = 9129322332.

The previous prime is 21301752113. The next prime is 21301752127. The reversal of 21301752122 is 22125710312.

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

It is a junction number, because it is equal to n+sod(n) for n = 21301752091 and 21301752100.

It is not an unprimeable number, because it can be changed into a prime (21301752127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760776848 + ... + 760776875.

It is an arithmetic number, because the mean of its divisors is an integer number (4564661172).

Almost surely, 2^21301752122 is an apocalyptic number.

21301752122 is a deficient number, since it is larger than the sum of its proper divisors (15215537254).

21301752122 is a wasteful number, since it uses less digits than its factorization.

21301752122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521553732.

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 21301752122 in words is "twenty-one billion, three hundred one million, seven hundred fifty-two thousand, one hundred twenty-two".