102120012002 has 8 divisors (see below), whose sum is σ = 155278374636. Its totient is φ = 50360553792.

The previous prime is 102120011933. The next prime is 102120012031. The reversal of 102120012002 is 200210021201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91216684441 + 10903327561 = 302021^2 + 104419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349725923 + ... + 349726214.

Almost surely, 2^102120012002 is an apocalyptic number.

102120012002 is a deficient number, since it is larger than the sum of its proper divisors (53158362634).

102120012002 is an equidigital number, since it uses as much as digits as its factorization.

102120012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699452212.

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

Adding to 102120012002 its reverse (200210021201), we get a palindrome (302330033203).

The spelling of 102120012002 in words is "one hundred two billion, one hundred twenty million, twelve thousand, two".