111022201242 has 48 divisors (see below), whose sum is σ = 245470448808. Its totient is φ = 36252303360.

The previous prime is 111022201229. The next prime is 111022201309. The reversal of 111022201242 is 242102220111.

It can be written as a sum of positive squares in 4 ways, for example, as 110695278681 + 326922561 = 332709^2 + 18081^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520738 + ... + 702290.

Almost surely, 2^111022201242 is an apocalyptic number.

111022201242 is an abundant number, since it is smaller than the sum of its proper divisors (134448247566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111022201242 is a wasteful number, since it uses less digits than its factorization.

111022201242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182255 (or 182252 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111022201242 its reverse (242102220111), we get a palindrome (353124421353).

The spelling of 111022201242 in words is "one hundred eleven billion, twenty-two million, two hundred one thousand, two hundred forty-two".