210020321032321 has 16 divisors (see below), whose sum is σ = 222718857624576. Its totient is φ = 197360238721536.

The previous prime is 210020321032309. The next prime is 210020321032349. The reversal of 210020321032321 is 123230123020012.

It is a cyclic number.

It is not a de Polignac number, because 210020321032321 - 2⁴¹ = 207821297776769 is a prime.

It is a super-2 number, since 2×210020321032321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210020321032292 and 210020321032301.

It is not an unprimeable number, because it can be changed into a prime (210020321032421) 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, 32913040 + ... + 38772526.

It is an arithmetic number, because the mean of its divisors is an integer number (13919928601536).

Almost surely, 2^{210020321032321} is an apocalyptic number.

It is an amenable number.

210020321032321 is a deficient number, since it is larger than the sum of its proper divisors (12698536592255).

210020321032321 is a wasteful number, since it uses less digits than its factorization.

210020321032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862768.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 210020321032321 its reverse (123230123020012), we get a palindrome (333250444052333).

The spelling of 210020321032321 in words is "two hundred ten trillion, twenty billion, three hundred twenty-one million, thirty-two thousand, three hundred twenty-one".