210121021112203 has 8 divisors (see below), whose sum is σ = 210309703286256. Its totient is φ = 209932380684000.

The previous prime is 210121021112131. The next prime is 210121021112209. The reversal of 210121021112203 is 302211120121012.

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

It is a cyclic number.

It is not a de Polignac number, because 210121021112203 - 2¹³ = 210121021104011 is a prime.

It is a super-2 number, since 2×210121021112203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210121021112209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360901 + ... + 20502982.

It is an arithmetic number, because the mean of its divisors is an integer number (26288712910782).

Almost surely, 2^{210121021112203} is an apocalyptic number.

210121021112203 is a deficient number, since it is larger than the sum of its proper divisors (188682174053).

210121021112203 is a wasteful number, since it uses less digits than its factorization.

210121021112203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20872925.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 210121021112203 its reverse (302211120121012), we get a palindrome (512332141233215).

The spelling of 210121021112203 in words is "two hundred ten trillion, one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, two hundred three".