111022220221012 has 12 divisors (see below), whose sum is σ = 194387359240116. Its totient is φ = 55482974723840.

The previous prime is 111022220220983. The next prime is 111022220221013. The reversal of 111022220221012 is 210122022220111.

It can be written as a sum of positive squares in 2 ways, for example, as 62425232129296 + 48596988091716 = 7900964^2 + 6971154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022220221013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7033837789 + ... + 7033853572.

It is an arithmetic number, because the mean of its divisors is an integer number (16198946603343).

Almost surely, 2^{111022220221012} is an apocalyptic number.

It is an amenable number.

111022220221012 is a deficient number, since it is larger than the sum of its proper divisors (83365139019104).

111022220221012 is a wasteful number, since it uses less digits than its factorization.

111022220221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14067693338 (or 14067693336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111022220221012 its reverse (210122022220111), we get a palindrome (321144242441123).

The spelling of 111022220221012 in words is "one hundred eleven trillion, twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, twelve".