2101120501109 has 16 divisors (see below), whose sum is σ = 2404541986560. Its totient is φ = 1798515290880.

The previous prime is 2101120501099. The next prime is 2101120501169. The reversal of 2101120501109 is 9011050211012.

It is a de Polignac number, because none of the positive numbers 2^k-2101120501109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101120501169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29498192 + ... + 29569334.

It is an arithmetic number, because the mean of its divisors is an integer number (150283874160).

Almost surely, 2^{2101120501109} is an apocalyptic number.

It is an amenable number.

2101120501109 is a deficient number, since it is larger than the sum of its proper divisors (303421485451).

2101120501109 is an equidigital number, since it uses as much as digits as its factorization.

2101120501109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76820.

The product of its (nonzero) digits is 180, while the sum is 23.

The spelling of 2101120501109 in words is "two trillion, one hundred one billion, one hundred twenty million, five hundred one thousand, one hundred nine".