214521101 has 2 divisors, whose sum is σ = 214521102. Its totient is φ = 214521100.

The previous prime is 214521067. The next prime is 214521127. The reversal of 214521101 is 101125412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162537001 + 51984100 = 12749^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 214521101 - 2⁶ = 214521037 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214521101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214521401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107260550 + 107260551.

It is an arithmetic number, because the mean of its divisors is an integer number (107260551).

Almost surely, 2^214521101 is an apocalyptic number.

It is an amenable number.

214521101 is a deficient number, since it is larger than the sum of its proper divisors (1).

214521101 is an equidigital number, since it uses as much as digits as its factorization.

214521101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 214521101 is about 14646.5388744235. The cubic root of 214521101 is about 598.6275119288.

Adding to 214521101 its reverse (101125412), we get a palindrome (315646513).

The spelling of 214521101 in words is "two hundred fourteen million, five hundred twenty-one thousand, one hundred one".