10121210002 has 16 divisors (see below), whose sum is σ = 15269966712. Its totient is φ = 5031290880.

The previous prime is 10121209993. The next prime is 10121210003. The reversal of 10121210002 is 20001212101.

It can be written as a sum of positive squares in 4 ways, for example, as 8119631881 + 2001578121 = 90109^2 + 44739^2 .

It is not an unprimeable number, because it can be changed into a prime (10121210003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280378 + ... + 314410.

Almost surely, 2^10121210002 is an apocalyptic number.

10121210002 is a deficient number, since it is larger than the sum of its proper divisors (5148756710).

10121210002 is a wasteful number, since it uses less digits than its factorization.

10121210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34893.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10121210002 its reverse (20001212101), we get a palindrome (30122422103).

The spelling of 10121210002 in words is "ten billion, one hundred twenty-one million, two hundred ten thousand, two".