20110221220011 has 8 divisors (see below), whose sum is σ = 28876215085200. Its totient is φ = 12375520750752.

The previous prime is 20110221220003. The next prime is 20110221220039. The reversal of 20110221220011 is 11002212201102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20110221220011 - 2³ = 20110221220003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110221210011) 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, 257823348936 + ... + 257823349013.

It is an arithmetic number, because the mean of its divisors is an integer number (3609526885650).

Almost surely, 2^{20110221220011} is an apocalyptic number.

20110221220011 is a deficient number, since it is larger than the sum of its proper divisors (8765993865189).

20110221220011 is a wasteful number, since it uses less digits than its factorization.

20110221220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515646697965.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110221220011 its reverse (11002212201102), we get a palindrome (31112433421113).

The spelling of 20110221220011 in words is "twenty trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty thousand, eleven".