20120010002 has 4 divisors (see below), whose sum is σ = 30180015006. Its totient is φ = 10060005000.

The previous prime is 20120009981. The next prime is 20120010007. The reversal of 20120010002 is 20001002102.

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., 10128208321 + 9991801681 = 100639^2 + 99959^2 .

It is not an unprimeable number, because it can be changed into a prime (20120010007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030002499 + ... + 5030002502.

Almost surely, 2^20120010002 is an apocalyptic number.

20120010002 is a deficient number, since it is larger than the sum of its proper divisors (10060005004).

20120010002 is a wasteful number, since it uses less digits than its factorization.

20120010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060005003.

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

Adding to 20120010002 its reverse (20001002102), we get a palindrome (40121012104).

The spelling of 20120010002 in words is "twenty billion, one hundred twenty million, ten thousand, two".