20110221100211 has 8 divisors (see below), whose sum is σ = 21982387800000. Its totient is φ = 18245381864040.

The previous prime is 20110221100199. The next prime is 20110221100219. The reversal of 20110221100211 is 11200112201102.

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

It is a cyclic number.

It is not a de Polignac number, because 20110221100211 - 2⁶ = 20110221100147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110221100219) 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, 1831860161 + ... + 1831871138.

It is an arithmetic number, because the mean of its divisors is an integer number (2747798475000).

Almost surely, 2^{20110221100211} is an apocalyptic number.

20110221100211 is a deficient number, since it is larger than the sum of its proper divisors (1872166699789).

20110221100211 is a wasteful number, since it uses less digits than its factorization.

20110221100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663731809.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20110221100211 its reverse (11200112201102), we get a palindrome (31310333301313).

The spelling of 20110221100211 in words is "twenty trillion, one hundred ten billion, two hundred twenty-one million, one hundred thousand, two hundred eleven".