214721280001 has 8 divisors (see below), whose sum is σ = 222155473320. Its totient is φ = 207289087488.

The previous prime is 214721279999. The next prime is 214721280023. The reversal of 214721280001 is 100082127412.

It can be written as a sum of positive squares in 4 ways, for example, as 375429376 + 214345850625 = 19376^2 + 462975^2 .

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 214721280001 - 2¹ = 214721279999 is a prime.

It is a super-2 number, since 2×214721280001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214721280101) 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, 280206 + ... + 712711.

It is an arithmetic number, because the mean of its divisors is an integer number (27769434165).

Almost surely, 2^214721280001 is an apocalyptic number.

It is an amenable number.

214721280001 is a deficient number, since it is larger than the sum of its proper divisors (7434193319).

214721280001 is an equidigital number, since it uses as much as digits as its factorization.

214721280001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000403.

The product of its (nonzero) digits is 1792, while the sum is 28.

The spelling of 214721280001 in words is "two hundred fourteen billion, seven hundred twenty-one million, two hundred eighty thousand, one".