2101228388507 has 2 divisors, whose sum is σ = 2101228388508. Its totient is φ = 2101228388506.

The previous prime is 2101228388477. The next prime is 2101228388603. The reversal of 2101228388507 is 7058838221012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101228388507 - 2²⁰ = 2101227339931 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101228388407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050614194253 + 1050614194254.

It is an arithmetic number, because the mean of its divisors is an integer number (1050614194254).

Almost surely, 2^{2101228388507} is an apocalyptic number.

2101228388507 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101228388507 is an equidigital number, since it uses as much as digits as its factorization.

2101228388507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 2101228388507 in words is "two trillion, one hundred one billion, two hundred twenty-eight million, three hundred eighty-eight thousand, five hundred seven".