2171101994 has 32 divisors (see below), whose sum is σ = 3754900800. Its totient is φ = 934536960.

The previous prime is 2171101993. The next prime is 2171102029. The reversal of 2171101994 is 4991011712.

It is not an unprimeable number, because it can be changed into a prime (2171101993) 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, 39212 + ... + 76679.

It is an arithmetic number, because the mean of its divisors is an integer number (117340650).

Almost surely, 2^2171101994 is an apocalyptic number.

2171101994 is a deficient number, since it is larger than the sum of its proper divisors (1583798806).

2171101994 is a wasteful number, since it uses less digits than its factorization.

2171101994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115958.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 2171101994 is about 46595.0855133886. The cubic root of 2171101994 is about 1294.8717083446.

The spelling of 2171101994 in words is "two billion, one hundred seventy-one million, one hundred one thousand, nine hundred ninety-four".