21107269151 has 8 divisors (see below), whose sum is σ = 21859974144. Its totient is φ = 20367214840.

The previous prime is 21107269147. The next prime is 21107269153. The reversal of 21107269151 is 15196270112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21107269151 - 2² = 21107269147 is a prime.

It is a super-2 number, since 2×21107269151² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21107269153) 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, 3159275 + ... + 3165948.

It is an arithmetic number, because the mean of its divisors is an integer number (2732496768).

Almost surely, 2^21107269151 is an apocalyptic number.

21107269151 is a deficient number, since it is larger than the sum of its proper divisors (752704993).

21107269151 is an equidigital number, since it uses as much as digits as its factorization.

21107269151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325341.

The product of its (nonzero) digits is 7560, while the sum is 35.

The spelling of 21107269151 in words is "twenty-one billion, one hundred seven million, two hundred sixty-nine thousand, one hundred fifty-one".