111122021012 has 24 divisors (see below), whose sum is σ = 201210912000. Its totient is φ = 53633984096.

The previous prime is 111122020987. The next prime is 111122021057. The reversal of 111122021012 is 210120221111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476489 + ... + 670287.

It is an arithmetic number, because the mean of its divisors is an integer number (8383788000).

Almost surely, 2^111122021012 is an apocalyptic number.

It is an amenable number.

111122021012 is a deficient number, since it is larger than the sum of its proper divisors (90088890988).

111122021012 is a wasteful number, since it uses less digits than its factorization.

111122021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198775 (or 198773 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111122021012 its reverse (210120221111), we get a palindrome (321242242123).

The spelling of 111122021012 in words is "one hundred eleven billion, one hundred twenty-two million, twenty-one thousand, twelve".