21349628201 has 8 divisors (see below), whose sum is σ = 23438852544. Its totient is φ = 19285128720.

The previous prime is 21349628171. The next prime is 21349628203. The reversal of 21349628201 is 10282694312.

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

It is not a de Polignac number, because 21349628201 - 2²² = 21345433897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21349628203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6179405 + ... + 6182858.

It is an arithmetic number, because the mean of its divisors is an integer number (2929856568).

Almost surely, 2^21349628201 is an apocalyptic number.

It is an amenable number.

21349628201 is a deficient number, since it is larger than the sum of its proper divisors (2089224343).

21349628201 is a wasteful number, since it uses less digits than its factorization.

21349628201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362431.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 21349628201 in words is "twenty-one billion, three hundred forty-nine million, six hundred twenty-eight thousand, two hundred one".