221110110101011 has 8 divisors (see below), whose sum is σ = 221127354927360. Its totient is φ = 221092865776968.

The previous prime is 221110110100973. The next prime is 221110110101053. The reversal of 221110110101011 is 110101011011122.

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 221110110101011 - 2⁷ = 221110110100883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221110110100982 and 221110110101000.

It is not an unprimeable number, because it can be changed into a prime (221110110105011) 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, 1611063130 + ... + 1611200368.

It is an arithmetic number, because the mean of its divisors is an integer number (27640919365920).

Almost surely, 2^{221110110101011} is an apocalyptic number.

221110110101011 is a deficient number, since it is larger than the sum of its proper divisors (17244826349).

221110110101011 is a wasteful number, since it uses less digits than its factorization.

221110110101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251153.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 221110110101011 its reverse (110101011011122), we get a palindrome (331211121112133).

The spelling of 221110110101011 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred ten million, one hundred one thousand, eleven".