212421201 has 16 divisors (see below), whose sum is σ = 293482560. Its totient is φ = 136503360.

The previous prime is 212421199. The next prime is 212421203. The reversal of 212421201 is 102124212.

It is an interprime number because it is at equal distance from previous prime (212421199) and next prime (212421203).

It is not a de Polignac number, because 212421201 - 2¹ = 212421199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212421203) 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, 62106 + ... + 65436.

It is an arithmetic number, because the mean of its divisors is an integer number (18342660).

Almost surely, 2^212421201 is an apocalyptic number.

It is an amenable number.

212421201 is a deficient number, since it is larger than the sum of its proper divisors (81061359).

212421201 is a wasteful number, since it uses less digits than its factorization.

212421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212421201 is about 14574.6767031039. The cubic root of 212421201 is about 596.6678258389.

Adding to 212421201 its reverse (102124212), we get a palindrome (314545413).

The spelling of 212421201 in words is "two hundred twelve million, four hundred twenty-one thousand, two hundred one".