2101207145355 has 48 divisors (see below), whose sum is σ = 3999160305504. Its totient is φ = 1054723576320.

The previous prime is 2101207145353. The next prime is 2101207145413. The reversal of 2101207145355 is 5535417021012.

2101207145355 is a `hidden beast` number, since 2 + 10 + 120 + 71 + 453 + 5 + 5 = 666.

It is not a de Polignac number, because 2101207145355 - 2¹ = 2101207145353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101207145353) 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 in 47 ways as a sum of consecutive naturals, for example, 50843716 + ... + 50885025.

It is an arithmetic number, because the mean of its divisors is an integer number (83315839698).

Almost surely, 2^{2101207145355} is an apocalyptic number.

2101207145355 is a deficient number, since it is larger than the sum of its proper divisors (1897953160149).

2101207145355 is a wasteful number, since it uses less digits than its factorization.

2101207145355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101728778 (or 101728766 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 2101207145355 in words is "two trillion, one hundred one billion, two hundred seven million, one hundred forty-five thousand, three hundred fifty-five".