111102121022 has 4 divisors (see below), whose sum is σ = 166653181536. Its totient is φ = 55551060510.

The previous prime is 111102121021. The next prime is 111102121037. The reversal of 111102121022 is 220121201111.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 111102120988 and 111102121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775530254 + ... + 27775530257.

It is an arithmetic number, because the mean of its divisors is an integer number (41663295384).

Almost surely, 2^111102121022 is an apocalyptic number.

111102121022 is a deficient number, since it is larger than the sum of its proper divisors (55551060514).

111102121022 is an equidigital number, since it uses as much as digits as its factorization.

111102121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55551060513.

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

Adding to 111102121022 its reverse (220121201111), we get a palindrome (331223322133).

The spelling of 111102121022 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, twenty-two".