111212222011022 has 16 divisors (see below), whose sum is σ = 182331597100032. Its totient is φ = 50454354148920.

The previous prime is 111212222011013. The next prime is 111212222011097. The reversal of 111212222011022 is 220110222212111.

It is a junction number, because it is equal to n+sod(n) for n = 111212222010985 and 111212222011003.

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, 4832781038 + ... + 4832804049.

It is an arithmetic number, because the mean of its divisors is an integer number (11395724818752).

Almost surely, 2^{111212222011022} is an apocalyptic number.

111212222011022 is a deficient number, since it is larger than the sum of its proper divisors (71119375089010).

111212222011022 is a wasteful number, since it uses less digits than its factorization.

111212222011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665585623.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111212222011022 its reverse (220110222212111), we get a palindrome (331322444223133).

The spelling of 111212222011022 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twenty-two million, eleven thousand, twenty-two".