1212320102 has 16 divisors (see below), whose sum is σ = 2089877760. Its totient is φ = 516662088.

The previous prime is 1212320077. The next prime is 1212320117. The reversal of 1212320102 is 2010232121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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, 239378 + ... + 244389.

It is an arithmetic number, because the mean of its divisors is an integer number (130617360).

Almost surely, 2^1212320102 is an apocalyptic number.

1212320102 is a deficient number, since it is larger than the sum of its proper divisors (877557658).

1212320102 is a wasteful number, since it uses less digits than its factorization.

1212320102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483955.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1212320102 is about 34818.3874124004. The cubic root of 1212320102 is about 1066.2828779225.

Adding to 1212320102 its reverse (2010232121), we get a palindrome (3222552223).

The spelling of 1212320102 in words is "one billion, two hundred twelve million, three hundred twenty thousand, one hundred two".