111021212122 has 32 divisors (see below), whose sum is σ = 176289753024. Its totient is φ = 52373328000.

The previous prime is 111021212119. The next prime is 111021212143. The reversal of 111021212122 is 221212120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021212096 and 111021212105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200253 + ... + 511999.

It is an arithmetic number, because the mean of its divisors is an integer number (5509054782).

Almost surely, 2^111021212122 is an apocalyptic number.

111021212122 is a deficient number, since it is larger than the sum of its proper divisors (65268540902).

111021212122 is a wasteful number, since it uses less digits than its factorization.

111021212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311934.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111021212122 its reverse (221212120111), we get a palindrome (332233332233).

The spelling of 111021212122 in words is "one hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred twenty-two".