213221320000001 has 16 divisors (see below), whose sum is σ = 214269161198400. Its totient is φ = 212174458606080.

The previous prime is 213221319999997. The next prime is 213221320000019. The reversal of 213221320000001 is 100000023122312.

It is a cyclic number.

It is not a de Polignac number, because 213221320000001 - 2² = 213221319999997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213221320000501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056618761 + ... + 4056671321.

It is an arithmetic number, because the mean of its divisors is an integer number (13391822574900).

Almost surely, 2^{213221320000001} is an apocalyptic number.

It is an amenable number.

213221320000001 is a deficient number, since it is larger than the sum of its proper divisors (1047841198399).

213221320000001 is a wasteful number, since it uses less digits than its factorization.

213221320000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61504.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213221320000001 its reverse (100000023122312), we get a palindrome (313221343122313).

The spelling of 213221320000001 in words is "two hundred thirteen trillion, two hundred twenty-one billion, three hundred twenty million, one", and thus it is an aban number.