2021110222139 has 2 divisors, whose sum is σ = 2021110222140. Its totient is φ = 2021110222138.

The previous prime is 2021110222069. The next prime is 2021110222291. The reversal of 2021110222139 is 9312220111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021110222139 - 2¹⁶ = 2021110156603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2021110222039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010555111069 + 1010555111070.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555111070).

Almost surely, 2^{2021110222139} is an apocalyptic number.

2021110222139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021110222139 is an equidigital number, since it uses as much as digits as its factorization.

2021110222139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 2021110222139 in words is "two trillion, twenty-one billion, one hundred ten million, two hundred twenty-two thousand, one hundred thirty-nine".