2021111202107 has 2 divisors, whose sum is σ = 2021111202108. Its totient is φ = 2021111202106.

The previous prime is 2021111202091. The next prime is 2021111202109. The reversal of 2021111202107 is 7012021111202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021111202107 - 2⁴ = 2021111202091 is a prime.

Together with 2021111202109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2021111202109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010555601053 + 1010555601054.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555601054).

Almost surely, 2^{2021111202107} is an apocalyptic number.

2021111202107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021111202107 is an equidigital number, since it uses as much as digits as its factorization.

2021111202107 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 2021111202107 its reverse (7012021111202), we get a palindrome (9033132313309).

The spelling of 2021111202107 in words is "two trillion, twenty-one billion, one hundred eleven million, two hundred two thousand, one hundred seven".