210002120200 has 24 divisors (see below), whose sum is σ = 488254929930. Its totient is φ = 84000848000.

The previous prime is 210002120197. The next prime is 210002120203. The reversal of 210002120200 is 2021200012.

It is an interprime number because it is at equal distance from previous prime (210002120197) and next prime (210002120203).

It can be written as a sum of positive squares in 3 ways, for example, as 194105449476 + 15896670724 = 440574^2 + 126082^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (210002120203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525005101 + ... + 525005500.

Almost surely, 2^210002120200 is an apocalyptic number.

210002120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002120200 is an abundant number, since it is smaller than the sum of its proper divisors (278252809730).

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

210002120200 is a wasteful number, since it uses less digits than its factorization.

210002120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050010617 (or 1050010608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 210002120200 its reverse (2021200012), we get a palindrome (212023320212).

The spelling of 210002120200 in words is "two hundred ten billion, two million, one hundred twenty thousand, two hundred".