111021021310012 has 48 divisors (see below), whose sum is σ = 212439110956128. Its totient is φ = 50347487646720.

The previous prime is 111021021309941. The next prime is 111021021310013. The reversal of 111021021310012 is 210013120120111.

It is a happy number.

It is a super-2 number, since 2×111021021310012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021021310013) 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, 165294448 + ... + 165964744.

It is an arithmetic number, because the mean of its divisors is an integer number (4425814811586).

Almost surely, 2^{111021021310012} is an apocalyptic number.

It is an amenable number.

111021021310012 is a deficient number, since it is larger than the sum of its proper divisors (101418089646116).

111021021310012 is a wasteful number, since it uses less digits than its factorization.

111021021310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679006 (or 679004 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111021021310012 its reverse (210013120120111), we get a palindrome (321034141430123).

The spelling of 111021021310012 in words is "one hundred eleven trillion, twenty-one billion, twenty-one million, three hundred ten thousand, twelve".