111212212232 has 48 divisors (see below), whose sum is σ = 241266202800. Its totient is φ = 47890418400.

The previous prime is 111212212211. The next prime is 111212212261. The reversal of 111212212232 is 232212212111.

It is a super-2 number, since 2×111212212232² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3004994 + ... + 3041777.

It is an arithmetic number, because the mean of its divisors is an integer number (5026379225).

Almost surely, 2^111212212232 is an apocalyptic number.

It is an amenable number.

111212212232 is an abundant number, since it is smaller than the sum of its proper divisors (130053990568).

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

111212212232 is a wasteful number, since it uses less digits than its factorization.

111212212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046818 (or 6046803 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 111212212232 its reverse (232212212111), we get a palindrome (343424424343).

The spelling of 111212212232 in words is "one hundred eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred thirty-two".