210212000210221 has 4 divisors (see below), whose sum is σ = 210218787622944. Its totient is φ = 210205212797500.

The previous prime is 210212000210137. The next prime is 210212000210279. The reversal of 210212000210221 is 122012000212012.

It is a happy number.

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 210212000210221 - 2⁹ = 210212000209709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210212000210195 and 210212000210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212000250221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393659905 + ... + 3393721846.

It is an arithmetic number, because the mean of its divisors is an integer number (52554696905736).

Almost surely, 2^{210212000210221} is an apocalyptic number.

It is an amenable number.

210212000210221 is a deficient number, since it is larger than the sum of its proper divisors (6787412723).

210212000210221 is an equidigital number, since it uses as much as digits as its factorization.

210212000210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787412722.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210212000210221 its reverse (122012000212012), we get a palindrome (332224000422233).

The spelling of 210212000210221 in words is "two hundred ten trillion, two hundred twelve billion, two hundred ten thousand, two hundred twenty-one".