10020022011221 has 16 divisors (see below), whose sum is σ = 10461154613760. Its totient is φ = 9586884826560.

The previous prime is 10020022011157. The next prime is 10020022011257. The reversal of 10020022011221 is 12211022002001.

It is a cyclic number.

It is not a de Polignac number, because 10020022011221 - 2⁶ = 10020022011157 is a prime.

It is a super-2 number, since 2×10020022011221² (a number of 27 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 = 10020022011196 and 10020022011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020022011121) 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, 4258910 + ... + 6178863.

It is an arithmetic number, because the mean of its divisors is an integer number (653822163360).

Almost surely, 2^{10020022011221} is an apocalyptic number.

It is an amenable number.

10020022011221 is a deficient number, since it is larger than the sum of its proper divisors (441132602539).

10020022011221 is a wasteful number, since it uses less digits than its factorization.

10020022011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438156.

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

Adding to 10020022011221 its reverse (12211022002001), we get a palindrome (22231044013222).

The spelling of 10020022011221 in words is "ten trillion, twenty billion, twenty-two million, eleven thousand, two hundred twenty-one".