120112211221 has 8 divisors (see below), whose sum is σ = 120383367224. Its totient is φ = 119841301440.

The previous prime is 120112211183. The next prime is 120112211239. The reversal of 120112211221 is 122112211021.

It can be written as a sum of positive squares in 4 ways, for example, as 180902500 + 119931308721 = 13450^2 + 346311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120112211221 - 2¹⁷ = 120112080149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120112211195 and 120112211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112211321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933235 + ... + 1054111.

It is an arithmetic number, because the mean of its divisors is an integer number (15047920903).

Almost surely, 2^120112211221 is an apocalyptic number.

It is an amenable number.

120112211221 is a deficient number, since it is larger than the sum of its proper divisors (271156003).

120112211221 is a wasteful number, since it uses less digits than its factorization.

120112211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123111.

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

Adding to 120112211221 its reverse (122112211021), we get a palindrome (242224422242).

The spelling of 120112211221 in words is "one hundred twenty billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-one".