20011000212002 has 4 divisors (see below), whose sum is σ = 30016500318006. Its totient is φ = 10005500106000.

The previous prime is 20011000211999. The next prime is 20011000212029. The reversal of 20011000212002 is 20021200011002.

It is a happy number.

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., 19927554912841 + 83445299161 = 4464029^2 + 288869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002750052999 + ... + 5002750053002.

Almost surely, 2^{20011000212002} is an apocalyptic number.

20011000212002 is a deficient number, since it is larger than the sum of its proper divisors (10005500106004).

20011000212002 is a wasteful number, since it uses less digits than its factorization.

20011000212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005500106003.

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

Adding to 20011000212002 its reverse (20021200011002), we get a palindrome (40032200223004).

The spelling of 20011000212002 in words is "twenty trillion, eleven billion, two hundred twelve thousand, two".