10020022022221 has 4 divisors (see below), whose sum is σ = 10036694272444. Its totient is φ = 10003349772000.

The previous prime is 10020022022183. The next prime is 10020022022233. The reversal of 10020022022221 is 12222022002001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7361785254121 + 2658236768100 = 2713261^2 + 1630410^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020022022221 - 2⁷ = 10020022022093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020022022195 and 10020022022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020022022251) 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, 8336124210 + ... + 8336125411.

It is an arithmetic number, because the mean of its divisors is an integer number (2509173568111).

Almost surely, 2^{10020022022221} is an apocalyptic number.

It is an amenable number.

10020022022221 is a deficient number, since it is larger than the sum of its proper divisors (16672250223).

10020022022221 is an equidigital number, since it uses as much as digits as its factorization.

10020022022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16672250222.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10020022022221 its reverse (12222022002001), we get a palindrome (22242044024222).

The spelling of 10020022022221 in words is "ten trillion, twenty billion, twenty-two million, twenty-two thousand, two hundred twenty-one".