210200212001021 has 32 divisors (see below), whose sum is σ = 239449307328000. Its totient is φ = 182772531103680.

The previous prime is 210200212000903. The next prime is 210200212001069. The reversal of 210200212001021 is 120100212002012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210200212001021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210200212000987 and 210200212001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200212001081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9379130 + ... + 22547028.

It is an arithmetic number, because the mean of its divisors is an integer number (7482790854000).

Almost surely, 2^{210200212001021} is an apocalyptic number.

It is an amenable number.

210200212001021 is a deficient number, since it is larger than the sum of its proper divisors (29249095326979).

210200212001021 is a wasteful number, since it uses less digits than its factorization.

210200212001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13168409.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210200212001021 its reverse (120100212002012), we get a palindrome (330300424003033).

Subtracting from 210200212001021 its reverse (120100212002012), we obtain a palindrome (90099999999009).

The spelling of 210200212001021 in words is "two hundred ten trillion, two hundred billion, two hundred twelve million, one thousand, twenty-one".