210012022210221 has 160 divisors (see below), whose sum is σ = 394018418534400. Its totient is φ = 108293444553600.

The previous prime is 210012022210217. The next prime is 210012022210229. The reversal of 210012022210221 is 122012220210012.

It is a happy number.

210012022210221 is a `hidden beast` number, since 2 + 100 + 120 + 2 + 221 + 0 + 221 = 666.

It is not a de Polignac number, because 210012022210221 - 2² = 210012022210217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210012022210194 and 210012022210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012022210229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1422704400 + ... + 1422852006.

It is an arithmetic number, because the mean of its divisors is an integer number (2462615115840).

Almost surely, 2^{210012022210221} is an apocalyptic number.

210012022210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210012022210221 is a deficient number, since it is larger than the sum of its proper divisors (184006396324179).

210012022210221 is a wasteful number, since it uses less digits than its factorization.

210012022210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149317 (or 149308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210012022210221 its reverse (122012220210012), we get a palindrome (332024242420233).

The spelling of 210012022210221 in words is "two hundred ten trillion, twelve billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".