2021021220107 has 2 divisors, whose sum is σ = 2021021220108. Its totient is φ = 2021021220106.

The previous prime is 2021021220091. The next prime is 2021021220161. The reversal of 2021021220107 is 7010221201202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021021220107 - 2⁴ = 2021021220091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021021210107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010510610053 + 1010510610054.

It is an arithmetic number, because the mean of its divisors is an integer number (1010510610054).

Almost surely, 2^{2021021220107} is an apocalyptic number.

2021021220107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021021220107 is an equidigital number, since it uses as much as digits as its factorization.

2021021220107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 2021021220107 its reverse (7010221201202), we get a palindrome (9031242421309).

The spelling of 2021021220107 in words is "two trillion, twenty-one billion, twenty-one million, two hundred twenty thousand, one hundred seven".