2171102028 has 48 divisors (see below), whose sum is σ = 5494747104. Its totient is φ = 664514560.

The previous prime is 2171101993. The next prime is 2171102029. The reversal of 2171102028 is 8202011712.

It is a super-3 number, since 3×2171102028³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2171101989 and 2171102007.

It is not an unprimeable number, because it can be changed into a prime (2171102029) 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, 121425 + ... + 138152.

It is an arithmetic number, because the mean of its divisors is an integer number (114473898).

Almost surely, 2^2171102028 is an apocalyptic number.

It is an amenable number.

2171102028 is an abundant number, since it is smaller than the sum of its proper divisors (3323645076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171102028 is a wasteful number, since it uses less digits than its factorization.

2171102028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259642 (or 259640 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 2171102028 is about 46595.0858782340. The cubic root of 2171102028 is about 1294.8717151040.

The spelling of 2171102028 in words is "two billion, one hundred seventy-one million, one hundred two thousand, twenty-eight".