2175421102 has 8 divisors (see below), whose sum is σ = 3271111200. Its totient is φ = 1085050704.

The previous prime is 2175421033. The next prime is 2175421103. The reversal of 2175421102 is 2011245712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175421103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328902 + ... + 1330537.

It is an arithmetic number, because the mean of its divisors is an integer number (408888900).

Almost surely, 2^2175421102 is an apocalyptic number.

2175421102 is a deficient number, since it is larger than the sum of its proper divisors (1095690098).

2175421102 is a wasteful number, since it uses less digits than its factorization.

2175421102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659850.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2175421102 is about 46641.4097342694. The cubic root of 2175421102 is about 1295.7297958096.

Adding to 2175421102 its reverse (2011245712), we get a palindrome (4186666814).

The spelling of 2175421102 in words is "two billion, one hundred seventy-five million, four hundred twenty-one thousand, one hundred two".