2101101028 has 24 divisors (see below), whose sum is σ = 3963916152. Its totient is φ = 968722944.

The previous prime is 2101100999. The next prime is 2101101029. The reversal of 2101101028 is 8201011012.

It can be written as a sum of positive squares in 4 ways, for example, as 573698304 + 1527402724 = 23952^2 + 39082^2 .

It is not an unprimeable number, because it can be changed into a prime (2101101029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30126 + ... + 71482.

It is an arithmetic number, because the mean of its divisors is an integer number (165163173).

Almost surely, 2^2101101028 is an apocalyptic number.

It is an amenable number.

2101101028 is a deficient number, since it is larger than the sum of its proper divisors (1862815124).

2101101028 is a wasteful number, since it uses less digits than its factorization.

2101101028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42351 (or 42349 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 2101101028 is about 45837.7685757062. The cubic root of 2101101028 is about 1280.8029280313.

The spelling of 2101101028 in words is "two billion, one hundred one million, one hundred one thousand, twenty-eight".