210121212202000 has 960 divisors, whose sum is σ = 604183050881280. Its totient is φ = 70054526976000.

The previous prime is 210121212201977. The next prime is 210121212202007. The reversal of 210121212202000 is 202212121012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (210121212202007) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 42388783522 + ... + 42388788478.

It is an arithmetic number, because the mean of its divisors is an integer number (629357344668).

Almost surely, 2^{210121212202000} is an apocalyptic number.

210121212202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210121212202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302091525440640).

210121212202000 is an abundant number, since it is smaller than the sum of its proper divisors (394061838679280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121212202000 is a wasteful number, since it uses less digits than its factorization.

210121212202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210121212202000 its reverse (202212121012), we get a palindrome (210323424323012).

The spelling of 210121212202000 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred twelve million, two hundred two thousand".