10211121220907 has 2 divisors, whose sum is σ = 10211121220908. Its totient is φ = 10211121220906.

The previous prime is 10211121220891. The next prime is 10211121221071. The reversal of 10211121220907 is 70902212111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10211121220907 - 2⁴ = 10211121220891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10211121220907.

It is not a weakly prime, because it can be changed into another prime (10211121220507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105560610453 + 5105560610454.

It is an arithmetic number, because the mean of its divisors is an integer number (5105560610454).

Almost surely, 2^{10211121220907} is an apocalyptic number.

10211121220907 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211121220907 is an equidigital number, since it uses as much as digits as its factorization.

10211121220907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 10211121220907 in words is "ten trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred seven".