111106598221 has 16 divisors (see below), whose sum is σ = 114372679680. Its totient is φ = 107854718400.

The previous prime is 111106598219. The next prime is 111106598227. The reversal of 111106598221 is 122895601111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111106598221 - 2¹ = 111106598219 is a prime.

It is a super-3 number, since 3×111106598221³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111106598227) 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, 41348340 + ... + 41351026.

It is an arithmetic number, because the mean of its divisors is an integer number (7148292480).

Almost surely, 2^111106598221 is an apocalyptic number.

It is an amenable number.

111106598221 is a deficient number, since it is larger than the sum of its proper divisors (3266081459).

111106598221 is a wasteful number, since it uses less digits than its factorization.

111106598221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884.

The product of its (nonzero) digits is 8640, while the sum is 37.

The spelling of 111106598221 in words is "one hundred eleven billion, one hundred six million, five hundred ninety-eight thousand, two hundred twenty-one".