167221201 has 16 divisors (see below), whose sum is σ = 203192064. Its totient is φ = 134506944.

The previous prime is 167221199. The next prime is 167221217. The reversal of 167221201 is 102122761.

It is a happy number.

It is not a de Polignac number, because 167221201 - 2¹ = 167221199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167221601) 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, 1266 + ... + 18331.

It is an arithmetic number, because the mean of its divisors is an integer number (12699504).

Almost surely, 2^167221201 is an apocalyptic number.

It is an amenable number.

167221201 is a deficient number, since it is larger than the sum of its proper divisors (35970863).

167221201 is a wasteful number, since it uses less digits than its factorization.

167221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19680.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 167221201 is about 12931.4036747756. The cubic root of 167221201 is about 550.9308764927.

Adding to 167221201 its reverse (102122761), we get a palindrome (269343962).

The spelling of 167221201 in words is "one hundred sixty-seven million, two hundred twenty-one thousand, two hundred one".