2021221011107 has 2 divisors, whose sum is σ = 2021221011108. Its totient is φ = 2021221011106.

The previous prime is 2021221011049. The next prime is 2021221011133. The reversal of 2021221011107 is 7011101221202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021221011107 - 2¹² = 2021221007011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021221011137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610505553 + 1010610505554.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610505554).

Almost surely, 2^{2021221011107} is an apocalyptic number.

2021221011107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021221011107 is an equidigital number, since it uses as much as digits as its factorization.

2021221011107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 2021221011107 its reverse (7011101221202), we get a palindrome (9032322232309).

The spelling of 2021221011107 in words is "two trillion, twenty-one billion, two hundred twenty-one million, eleven thousand, one hundred seven".