2175061221206 has 32 divisors (see below), whose sum is σ = 3499287130080. Its totient is φ = 1010312905216.

The previous prime is 2175061221199. The next prime is 2175061221217. The reversal of 2175061221206 is 6021221605712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782100 + ... + 3477096.

It is an arithmetic number, because the mean of its divisors is an integer number (109352722815).

Almost surely, 2^{2175061221206} is an apocalyptic number.

2175061221206 is a deficient number, since it is larger than the sum of its proper divisors (1324225908874).

2175061221206 is a wasteful number, since it uses less digits than its factorization.

2175061221206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696208.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 2175061221206 its reverse (6021221605712), we get a palindrome (8196282826918).

The spelling of 2175061221206 in words is "two trillion, one hundred seventy-five billion, sixty-one million, two hundred twenty-one thousand, two hundred six".