10020211002221 has 4 divisors (see below), whose sum is σ = 11451669716832. Its totient is φ = 8588752287612.

The previous prime is 10020211002209. The next prime is 10020211002283. The reversal of 10020211002221 is 12220011202001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10020211002221 - 2⁶ = 10020211002157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10020211002196 and 10020211002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020211001221) 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, 715729357295 + ... + 715729357308.

It is an arithmetic number, because the mean of its divisors is an integer number (2862917429208).

Almost surely, 2^{10020211002221} is an apocalyptic number.

It is an amenable number.

10020211002221 is a deficient number, since it is larger than the sum of its proper divisors (1431458714611).

10020211002221 is an equidigital number, since it uses as much as digits as its factorization.

10020211002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431458714610.

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

Adding to 10020211002221 its reverse (12220011202001), we get a palindrome (22240222204222).

The spelling of 10020211002221 in words is "ten trillion, twenty billion, two hundred eleven million, two thousand, two hundred twenty-one".