221120201101011 has 16 divisors (see below), whose sum is σ = 297826871980320. Its totient is φ = 145916927313920.

The previous prime is 221120201100973. The next prime is 221120201101049. The reversal of 221120201101011 is 110101102021122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221120201100973) and next prime (221120201101049).

It is a cyclic number.

It is not a de Polignac number, because 221120201101011 - 2²³ = 221120192712403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221120201151011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428304426 + ... + 428820383.

It is an arithmetic number, because the mean of its divisors is an integer number (18614179498770).

Almost surely, 2^{221120201101011} is an apocalyptic number.

221120201101011 is a deficient number, since it is larger than the sum of its proper divisors (76706670879309).

221120201101011 is a wasteful number, since it uses less digits than its factorization.

221120201101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857125686.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221120201101011 its reverse (110101102021122), we get a palindrome (331221303122133).

The spelling of 221120201101011 in words is "two hundred twenty-one trillion, one hundred twenty billion, two hundred one million, one hundred one thousand, eleven".