720221200111 has 6 divisors (see below), whose sum is σ = 837808334880. Its totient is φ = 617332457196.

The previous prime is 720221200093. The next prime is 720221200123. The reversal of 720221200111 is 111002122027.

It is not a de Polignac number, because 720221200111 - 2⁵ = 720221200079 is a prime.

It is a super-3 number, since 3×720221200111³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720221200141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7349195871 + ... + 7349195968.

It is an arithmetic number, because the mean of its divisors is an integer number (139634722480).

Almost surely, 2^720221200111 is an apocalyptic number.

720221200111 is a deficient number, since it is larger than the sum of its proper divisors (117587134769).

720221200111 is a wasteful number, since it uses less digits than its factorization.

720221200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14698391853 (or 14698391846 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 720221200111 its reverse (111002122027), we get a palindrome (831223322138).

The spelling of 720221200111 in words is "seven hundred twenty billion, two hundred twenty-one million, two hundred thousand, one hundred eleven".