1210400200 has 48 divisors (see below), whose sum is σ = 2817766080. Its totient is φ = 483543360.

The previous prime is 1210400197. The next prime is 1210400207. The reversal of 1210400200 is 20040121.

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 (1210400207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173989 + ... + 180811.

It is an arithmetic number, because the mean of its divisors is an integer number (58703460).

Almost surely, 2^1210400200 is an apocalyptic number.

1210400200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210400200 is an abundant number, since it is smaller than the sum of its proper divisors (1607365880).

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

1210400200 is a wasteful number, since it uses less digits than its factorization.

1210400200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726 (or 7717 counting only the distinct ones).

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

The square root of 1210400200 is about 34790.8062568260. The cubic root of 1210400200 is about 1065.7197042620.

Adding to 1210400200 its reverse (20040121), we get a palindrome (1230440321).

The spelling of 1210400200 in words is "one billion, two hundred ten million, four hundred thousand, two hundred".