111001020022012 has 24 divisors (see below), whose sum is σ = 194678523159120. Its totient is φ = 55378591474560.

The previous prime is 111001020021979. The next prime is 111001020022019. The reversal of 111001020022012 is 210220020100111.

It is a junction number, because it is equal to n+sod(n) for n = 111001020021983 and 111001020022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001020022019) 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, 67595539 + ... + 69218197.

It is an arithmetic number, because the mean of its divisors is an integer number (8111605131630).

Almost surely, 2^{111001020022012} is an apocalyptic number.

It is an amenable number.

111001020022012 is a deficient number, since it is larger than the sum of its proper divisors (83677503137108).

111001020022012 is a wasteful number, since it uses less digits than its factorization.

111001020022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660221 (or 1660219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111001020022012 its reverse (210220020100111), we get a palindrome (321221040122123).

The spelling of 111001020022012 in words is "one hundred eleven trillion, one billion, twenty million, twenty-two thousand, twelve".