210220920000 has 2800 divisors, whose sum is σ = 1032331948032. Its totient is φ = 41057280000.

The previous prime is 210220919983. The next prime is 210220920011. The reversal of 210220920000 is 29022012.

It is a tau number, because it is divible by the number of its divisors (2800).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 399 ways as a sum of consecutive naturals, for example, 6781319985 + ... + 6781320015.

Almost surely, 2^210220920000 is an apocalyptic number.

210220920000 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 210220920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516165974016).

210220920000 is an abundant number, since it is smaller than the sum of its proper divisors (822111028032).

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

210220920000 is a wasteful number, since it uses less digits than its factorization.

210220920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210220920000 its reverse (29022012), we get a palindrome (210249942012).

The spelling of 210220920000 in words is "two hundred ten billion, two hundred twenty million, nine hundred twenty thousand".