212202001 has 4 divisors (see below), whose sum is σ = 231493104. Its totient is φ = 192910900.

The previous prime is 212201989. The next prime is 212202017. The reversal of 212202001 is 100202212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212202001 - 2¹³ = 212193809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212202091) 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 in 3 ways as a sum of consecutive naturals, for example, 9645535 + ... + 9645556.

It is an arithmetic number, because the mean of its divisors is an integer number (57873276).

Almost surely, 2^212202001 is an apocalyptic number.

It is an amenable number.

212202001 is a deficient number, since it is larger than the sum of its proper divisors (19291103).

212202001 is a wasteful number, since it uses less digits than its factorization.

212202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19291102.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 212202001 is about 14567.1548697747. The cubic root of 212202001 is about 596.4625189606.

Adding to 212202001 its reverse (100202212), we get a palindrome (312404213).

It can be divided in two parts, 21 and 2202001, that added together give a palindrome (2202022).

The spelling of 212202001 in words is "two hundred twelve million, two hundred two thousand, one".