1212400202 has 16 divisors (see below), whose sum is σ = 1983287040. Its totient is φ = 552485232.

The previous prime is 1212400199. The next prime is 1212400207. The reversal of 1212400202 is 2020042121.

It is not an unprimeable number, because it can be changed into a prime (1212400207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293078 + ... + 297185.

It is an arithmetic number, because the mean of its divisors is an integer number (123955440).

Almost surely, 2^1212400202 is an apocalyptic number.

1212400202 is a deficient number, since it is larger than the sum of its proper divisors (770886838).

1212400202 is a wasteful number, since it uses less digits than its factorization.

1212400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590357.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1212400202 is about 34819.5376477058. The cubic root of 1212400202 is about 1066.3063610982.

Adding to 1212400202 its reverse (2020042121), we get a palindrome (3232442323).

The spelling of 1212400202 in words is "one billion, two hundred twelve million, four hundred thousand, two hundred two".