210200101021 has 8 divisors (see below), whose sum is σ = 219344465664. Its totient is φ = 201056172240.

The previous prime is 210200100983. The next prime is 210200101037. The reversal of 210200101021 is 120101002012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210200101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210200100989 and 210200101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200101421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223191 + ... + 1384411.

It is an arithmetic number, because the mean of its divisors is an integer number (27418058208).

Almost surely, 2^210200101021 is an apocalyptic number.

It is an amenable number.

210200101021 is a deficient number, since it is larger than the sum of its proper divisors (9144364643).

210200101021 is a wasteful number, since it uses less digits than its factorization.

210200101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217931.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210200101021 its reverse (120101002012), we get a palindrome (330301103033).

Subtracting from 210200101021 its reverse (120101002012), we obtain a palindrome (90099099009).

The spelling of 210200101021 in words is "two hundred ten billion, two hundred million, one hundred one thousand, twenty-one".