1212200102 has 4 divisors (see below), whose sum is σ = 1818300156. Its totient is φ = 606100050.

The previous prime is 1212200089. The next prime is 1212200107. The reversal of 1212200102 is 2010022121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2010022121 = 227 ⋅8854723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212200107) 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 as a sum of consecutive naturals, namely, 303050024 + ... + 303050027.

It is an arithmetic number, because the mean of its divisors is an integer number (454575039).

Almost surely, 2^1212200102 is an apocalyptic number.

1212200102 is a deficient number, since it is larger than the sum of its proper divisors (606100054).

1212200102 is an equidigital number, since it uses as much as digits as its factorization.

1212200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606100053.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1212200102 is about 34816.6641423328. The cubic root of 1212200102 is about 1066.2476951994.

Adding to 1212200102 its reverse (2010022121), we get a palindrome (3222222223).

The spelling of 1212200102 in words is "one billion, two hundred twelve million, two hundred thousand, one hundred two".