2121626426107 has 2 divisors, whose sum is σ = 2121626426108. Its totient is φ = 2121626426106.

The previous prime is 2121626426077. The next prime is 2121626426147. The reversal of 2121626426107 is 7016246261212.

It is a happy number.

It is an a-pointer prime, because the next prime (2121626426147) can be obtained adding 2121626426107 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121626426107 - 2⁷ = 2121626425979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121626426107.

It is not a weakly prime, because it can be changed into another prime (2121626426147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060813213053 + 1060813213054.

It is an arithmetic number, because the mean of its divisors is an integer number (1060813213054).

Almost surely, 2^{2121626426107} is an apocalyptic number.

2121626426107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121626426107 is an equidigital number, since it uses as much as digits as its factorization.

2121626426107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 2121626426107 in words is "two trillion, one hundred twenty-one billion, six hundred twenty-six million, four hundred twenty-six thousand, one hundred seven".