210022221221001 has 64 divisors (see below), whose sum is σ = 355812758732800. Its totient is φ = 119938612232448.

The previous prime is 210022221220979. The next prime is 210022221221003. The reversal of 210022221221001 is 100122122220012.

It is a happy number.

210022221221001 is a `hidden beast` number, since 21 + 0 + 0 + 222 + 212 + 210 + 0 + 1 = 666.

It is not a de Polignac number, because 210022221221001 - 2¹³ = 210022221212809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210022221221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2146473786 + ... + 2146571628.

It is an arithmetic number, because the mean of its divisors is an integer number (5559574355200).

Almost surely, 2^{210022221221001} is an apocalyptic number.

210022221221001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210022221221001 is a deficient number, since it is larger than the sum of its proper divisors (145790537511799).

210022221221001 is a wasteful number, since it uses less digits than its factorization.

210022221221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104755 (or 104749 counting only the distinct ones).

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

Adding to 210022221221001 its reverse (100122122220012), we get a palindrome (310144343441013).

The spelling of 210022221221001 in words is "two hundred ten trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, one".