20212321210210 has 8 divisors (see below), whose sum is σ = 36382178178396. Its totient is φ = 8084928484080.

The previous prime is 20212321210201. The next prime is 20212321210217. The reversal of 20212321210210 is 1201212321202.

It can be written as a sum of positive squares in 2 ways, for example, as 19773238717521 + 439082492689 = 4446711^2 + 662633^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20212321210217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010616060501 + ... + 1010616060520.

Almost surely, 2^{20212321210210} is an apocalyptic number.

20212321210210 is a deficient number, since it is larger than the sum of its proper divisors (16169856968186).

20212321210210 is a wasteful number, since it uses less digits than its factorization.

20212321210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021232121028.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20212321210210 its reverse (1201212321202), we get a palindrome (21413533531412).

The spelling of 20212321210210 in words is "twenty trillion, two hundred twelve billion, three hundred twenty-one million, two hundred ten thousand, two hundred ten".