10020021210221 has 16 divisors (see below), whose sum is σ = 11199171587328. Its totient is φ = 8886815808000.

The previous prime is 10020021210193. The next prime is 10020021210281. The reversal of 10020021210221 is 12201212002001.

It is a cyclic number.

It is not a de Polignac number, because 10020021210221 - 2¹⁰ = 10020021209197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020021210196 and 10020021210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020021210281) 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, 30798380 + ... + 31122021.

It is an arithmetic number, because the mean of its divisors is an integer number (699948224208).

Almost surely, 2^{10020021210221} is an apocalyptic number.

10020021210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10020021210221 is a deficient number, since it is larger than the sum of its proper divisors (1179150377107).

10020021210221 is a wasteful number, since it uses less digits than its factorization.

10020021210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61920772.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10020021210221 its reverse (12201212002001), we get a palindrome (22221233212222).

The spelling of 10020021210221 in words is "ten trillion, twenty billion, twenty-one million, two hundred ten thousand, two hundred twenty-one".