20121101010002 has 4 divisors (see below), whose sum is σ = 30181651515006. Its totient is φ = 10060550505000.

The previous prime is 20121101009993. The next prime is 20121101010041. The reversal of 20121101010002 is 20001010112102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17166445984081 + 2954655025921 = 4143241^2 + 1718911^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030275252499 + ... + 5030275252502.

Almost surely, 2^{20121101010002} is an apocalyptic number.

20121101010002 is a deficient number, since it is larger than the sum of its proper divisors (10060550505004).

20121101010002 is a wasteful number, since it uses less digits than its factorization.

20121101010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060550505003.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20121101010002 its reverse (20001010112102), we get a palindrome (40122111122104).

The spelling of 20121101010002 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, ten thousand, two".