222131111120 has 40 divisors (see below), whose sum is σ = 526199274216. Its totient is φ = 87175981568.

The previous prime is 222131111117. The next prime is 222131111149. The reversal of 222131111120 is 21111131222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33389521984 + 188741589136 = 182728^2 + 434444^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×222131111120³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26190467 + ... + 26198946.

Almost surely, 2^222131111120 is an apocalyptic number.

222131111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222131111120 is an abundant number, since it is smaller than the sum of its proper divisors (304068163096).

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

222131111120 is a wasteful number, since it uses less digits than its factorization.

222131111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52389479 (or 52389473 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 222131111120 its reverse (21111131222), we get a palindrome (243242242342).

The spelling of 222131111120 in words is "two hundred twenty-two billion, one hundred thirty-one million, one hundred eleven thousand, one hundred twenty".