210010221222021 has 48 divisors (see below), whose sum is σ = 335133428460480. Its totient is φ = 125664559215360.

The previous prime is 210010221222013. The next prime is 210010221222101. The reversal of 210010221222021 is 120222122010012.

It is a happy number.

210010221222021 is a `hidden beast` number, since 210 + 0 + 1 + 0 + 2 + 212 + 220 + 21 = 666.

It is not a de Polignac number, because 210010221222021 - 2³ = 210010221222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210010221221985 and 210010221222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010221226021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11430846 + ... + 23466671.

It is an arithmetic number, because the mean of its divisors is an integer number (6981946426260).

Almost surely, 2^{210010221222021} is an apocalyptic number.

It is an amenable number.

210010221222021 is a deficient number, since it is larger than the sum of its proper divisors (125123207238459).

210010221222021 is a wasteful number, since it uses less digits than its factorization.

210010221222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34898306 (or 34898303 counting only the distinct ones).

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

Adding to 210010221222021 its reverse (120222122010012), we get a palindrome (330232343232033).

The spelling of 210010221222021 in words is "two hundred ten trillion, ten billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty-one".