221100100201011 has 16 divisors (see below), whose sum is σ = 294822595975680. Its totient is φ = 147388836149760.

The previous prime is 221100100201009. The next prime is 221100100201061. The reversal of 221100100201011 is 110102001001122.

221100100201011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221100100201011 - 2¹ = 221100100201009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221100100201061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3373326706 + ... + 3373392248.

It is an arithmetic number, because the mean of its divisors is an integer number (18426412248480).

Almost surely, 2^{221100100201011} is an apocalyptic number.

221100100201011 is a deficient number, since it is larger than the sum of its proper divisors (73722495774669).

221100100201011 is a wasteful number, since it uses less digits than its factorization.

221100100201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134066.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221100100201011 its reverse (110102001001122), we get a palindrome (331202101202133).

The spelling of 221100100201011 in words is "two hundred twenty-one trillion, one hundred billion, one hundred million, two hundred one thousand, eleven".