20111021200010 has 32 divisors (see below), whose sum is σ = 38985523637760. Its totient is φ = 7425401629248.

The previous prime is 20111021199989. The next prime is 20111021200031. The reversal of 20111021200010 is 1000212011102.

It is an interprime number because it is at equal distance from previous prime (20111021199989) and next prime (20111021200031).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20111021199964 and 20111021200000.

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 in 15 ways as a sum of consecutive naturals, for example, 2591729 + ... + 6851211.

It is an arithmetic number, because the mean of its divisors is an integer number (1218297613680).

Almost surely, 2^{20111021200010} is an apocalyptic number.

20111021200010 is a deficient number, since it is larger than the sum of its proper divisors (18874502437750).

20111021200010 is a wasteful number, since it uses less digits than its factorization.

20111021200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295822.

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

Adding to 20111021200010 its reverse (1000212011102), we get a palindrome (21111233211112).

The spelling of 20111021200010 in words is "twenty trillion, one hundred eleven billion, twenty-one million, two hundred thousand, ten".